Practice Test

Q1) Forest and wild life are: Show Answer

Q2) Which one of the following forests is more diverse? Show Answer

Q3) Deciduous forests are the characteristic of the region having: Show Answer

Q4) Which one of the following is most effective in controlling floods? Show Answer

Q5) Indian bustard bird is on the verge of extinction due to: Show Answer

Q6) Tropical evergreen forests are found in India in: Show Answer

Q7) Which one of the following birds has gained importance as wild life in recent years? Show Answer

Q8) Corbett National Park, first to be established, is present in: Show Answer

Q9) Which of the following birds in India is on the verge of extinction? Show Answer

Q10) What percentage of total land area is covered by forests in India? Show Answer

Q11) Conifers are dominant vegetation of: Show Answer

Q12) How many species of plants are threatened with extinction? Show Answer

Q13) With reference to conservation of wild life, how many 'Project Tiger' areas have been selected: Show Answer

Q14) In which state of India is the Gir Lion sanctuary situated? Show Answer

Q15) The most effective means of conservation is to: Show Answer

Q16) The bird 'Dodo' became extinct because of: Show Answer

Q17) Which is the only home of yellow maned Indian Lion? Show Answer

Q18) Indian Rhinoceros is the most protected species in National Park: Show Answer

Q19) What for IUCN stands: Show Answer

Q20) Small parks tend to support only: Show Answer

Q21) Main cause of extinction of wild life is: Show Answer

Q22) Deforestation causes: Show Answer

Q23) Quinine is obtained from: Show Answer

Q24) Rare species are those: Show Answer

Q25) Biologists celebrate every year 5th June as: Show Answer

Q26) On which date wild life day is celebrated? Show Answer

Q27) Project tiger was launched in: Show Answer

Q28) Nilgiri Biosphere Reserve Project is concerned with conservation scheme of: Show Answer

Q29) Biosphere reserve areas are: Show Answer

Q30) Wildlife protection act was made in: Show Answer

Q31) In national parks which of the following are not allowed: Show Answer

Q32) World forest day is observed on: Show Answer

Q33) The concept of critical habitats is: Show Answer

Q34) The species which are in the immediate danger of extinction are called: Show Answer

Q35) The percentage of endangered living species is: Show Answer

Q36) Periyar Wildlife sanctuary is situated at: Show Answer

Q37) Ranthambore National Park is situated in: Show Answer

Q38) Quinine is: Show Answer

Q39) White tigers are conserved in: Show Answer

Q40) Flamingo in India are preserved at: Show Answer

Q41) Deforestation may reduce the chances of: Show Answer

Q42) Earth summit at Rio-de-Janeiro (Brazil) was related to: Show Answer

Q43) Cultigens include: Show Answer

Q44) If environmental restoration is started right now, resolving the present man-made ecological crisis will take about: Show Answer

Q45) Man disturbs natural food chains by: Show Answer

Q46) Silent valley of Kerala is being preserved because it has: Show Answer

Q47) MAB stands for: Show Answer

Q48) Kaziranga wild life sanctuary is famous for: Show Answer

Q49) The 'threatened species' refers to the species which are: Show Answer

Q50) The number of vertebrate species facing danger of extinction is about: Show Answer

Q51) The concept of "Biosphere Reserve" was conceived by: Show Answer

Q52) Which of the following animals has become almost extinct in India? Show Answer

Q53) Whales when washed ashore will die because: Show Answer

Q54) The famous Chipko movement was started by: Show Answer

Q55) When was MAB launched by UNESCO? Show Answer

Q56) A species in immediate danger of extinction is: Show Answer

Q57) Identify the correct match between tiger reserve and its state: Show Answer

Q58) First National Park of India is: Show Answer

Q59) Which of the following is matching pair of sanctuary and its main protected animals? Show Answer

Q60) About what species of earth's species will be destroyed if all the tropical rain forests are destroyed? Show Answer

Q61) Species most vulnerable to extinction from human activities are those with: Show Answer

Q62) Which of following types of animals does man chiefly protect? Show Answer

Q63) Red panda is preserved at: Show Answer

Q64) "Chipko Movement" is world's most known eco development programme started by Sunder Lal Bahuguna (1973). It is related with: Show Answer

Q65) Which is correct for threatened (T) species: Show Answer

Q66) Vulnerable (V) species are those: Show Answer

Q67) A biosphere reserve preserve: Show Answer

Q68) Animals and plants can be best protected in: Show Answer

Q69) Conservation of wild life is essential to: Show Answer

Q70) Symbol of WWF-N Show Answer

Q71) Threatened species often include: Show Answer

Q72) Species which occur in small populations and are restricted to only certain geographical areas are placed under the category: Show Answer

Q73) Conservation of living resources is a complex operation and is concerned with: Show Answer

Q74) Which one of the following would be more appropriate in producing high yielding varieties? Show Answer

Q75) Had Cinchona been eliminated before its use was discovered, man would have been deprived of: Show Answer

Q76) Kanha Biosphere reserve is to be established in: Show Answer

Q77) Cold deserts of India occurs in: Show Answer

Q78) In wild life sanctuary: Show Answer

Q79) Number of Biosphere reserves in world is: Show Answer

Q80) Marine invertebrates are protected in: Show Answer

Q81) Number of Endangered species of Angiosperms in India: Show Answer

Q82) World Wildlife Fund was organised by UNESCO in: Show Answer

Q83) Tadoba National Park is located in: Show Answer

Q84) The species of animals protected in Biligiri Rangaswamy National Park is: Show Answer

Q85) The most threatening factor for survival of plant biodiversity is: Show Answer

Q86) In bioreserves .... is allowed: Show Answer

Q87) Which endangered animal is the source of world's finest, lightest, warmest and most expensive wool-the shahtoosh? Show Answer

Q88) According to Indian Forest policy what percentage of land area should be under forest cover? Show Answer

Q89) Species listed in "Red Data Book" are: Show Answer

Q90) Similipal is: Show Answer

Q91) Which is the most effective way to conserve the plant diversity of an area? Show Answer

Q92) Which one of the following is a pair of endangered species? Show Answer

Q93) If the Bengal tiger becomes extinct: Show Answer

Q94) Which of the following animals is protected in Kaziranga Sanctuary of Assam? Show Answer

Q95) According to IUCN Red List, what is the status of Red Panda (Ailurus fulgens)? Show Answer

Q96) Biodiversity Act of India was passed by the Parliament in the year: Show Answer

Q97) One of the ex situ conservation methods for endangered species is: Show Answer

Q98) Genetic diversity in agricultural crops is threatened by: Show Answer

Q99) Black buck (Antilope cervucarpa) is an example of: Show Answer

Q100) Keystone species deserve protection because these: Show Answer

Q101) In India, we find mangoes with different flavours, colours, fibre content, sugar content and even shelf-life. The large variation is on account of: Show Answer

Q102) Biosphere Reserves differ from national parks and wildlife sanctuaries because in the former: Show Answer

Q103) Which one of the following is the correctly matched pair of an endangered animal and a National Park? Show Answer

Q104) Which of the following is considered a "hot-spot" of biodiversity in India? Show Answer

Q105) Which one of the following is not included under insitu conservation? Show Answer

Q106) Which of the following parts of an animal and a plant represents endangered organisms in India? Show Answer

Q107) Which one is a critically endangered animal species? Show Answer

Q108) Which of the following regions of our country are known for their rich biodiversity? Show Answer

Q109) Pure clay is not suitable for plant growth because: Show Answer

Q110) Humus is an example of: Show Answer

Q111) Restoration of ecological equilibrium in mined areas can be achieved through: Show Answer

Q112) In Northern Indian plains, there is an increase in floods in recent times due to: Show Answer

Q113) Laterization is a process that results in the: Show Answer

Q114) Which of the following soils cracks and shrinks most as it dries: Show Answer

Q115) What is the best pH of the soil for cultivation of plants: Show Answer

Q116) Which are the dense forests? Show Answer

Q117) Which of the following is the main reason for extinction of animals? Show Answer

Q118) Rhizophora occurs in: Show Answer

Q119) Major fuel component of biogas is: Show Answer

Q120) Water infiltration will be slowest in: Show Answer

Q121) Amount of alcohol allowed to be mixed with petrol in India is: Show Answer

Q122) More than 70% of world's freshwater is contained in: Show Answer

Q123) Identify the odd combination of the habitat and the particular animal concerned: Show Answer

Q124) One of endangered species of Indian medicinal plants is that of: Show Answer

Q125) Manas sancturary is located at: Show Answer

Q126) Assertion (A): Tropical rain forests are disappearing fast from developing countries such as India.
Reason (R): No value is attached to these forests because these are poor in biodiversity. Show Answer

Q127) Habitat loss and fragmetation, over exploitation, alien species invasion and co-extinction are causes for: Show Answer

Q128) The venue and year of the Earth Summit on Conservation of Biodiversity was: Show Answer

Q129) India became a party to 'Convention on Biological Diversity' in year: Show Answer

Q130) Which one of the following is not observed in biodiversity hotspots? Show Answer

Q131) World Summit on Sustainable Development (2002) was held in: Show Answer

Q132) Which one of the following have the highest number of species in nature? Show Answer

Q133) Which one of the following shows maximum genetic diversity in India? Show Answer

Q134) Which of the following expanded forms of the following acronyms is correct? Show Answer

Q135) The term biodiversity refers to: Show Answer

Q136) An American plant that has become a waterweed in India is: Show Answer

Q137) Endemic plants are those which are: Show Answer

Q138) Planting of flower and fruit trees along road sides is included in: Show Answer

Q139) Decline in our forests is due to: Show Answer

Q140) What is cause of destruction of biologically rich and unique habitats? Show Answer

Q141) Ginkgo has been removed from the list of endangered species due to: Show Answer

Q142) What is the approximate number of species of fish described all over the world? Show Answer

Q143) Which of the following levels of biodiversity are interrelated?
(I) Genetic diversity
(II) Species diversity
(III) Community and ecosystem diversity Show Answer

Q144) What is the basis of speciation? Show Answer

Q145) Alpha diversity refers to: Show Answer

Q146) From which of the following plant, medicine is obtained used as analgesic? Show Answer

Q147) Anthropogenic extinction is caused by: Show Answer

Q148) Planting trees on public and common land is known as: Show Answer

Q149) An example for in-situ biological conservation method is to establish: Show Answer

Q150) The Earth Summit held at Rio-de-Janeiro in 1992 resulted into: Show Answer

Q151) Approximate percentage of endemic flowering plants in India is: Show Answer

Q152) Select the correct statement: Show Answer

Q153) Which of the following is correct? Show Answer

Q154) Which of the following is incorrect? Show Answer

Q155) What is Biodiversity referred to as? Show Answer

Q156) Threats to biodiversity comes from Show Answer

Q157) Which species is most likely to be positively selected by natural selection? Show Answer

Q158) What is the decreasing order of number of animal species, as far as India is concerned? Show Answer

Q159) The diversity of organism sharing the same habitat or community is termed as _____ Show Answer

Q160) Which one of the following are two hot spots of biodiversity in India? Show Answer

Q161) What is the affect of species diversity, as one moves from high to low altitudes. Show Answer

Q162) Which of the following is not an example of in-situ conservation? Show Answer

Q163) The numbers of National Parks, Biosphere and Wildlife sanctuaries of India were Show Answer

Q164) In which part of biosphere reserves human settlement is permissible? Show Answer

Q165) As estimated by Robert May, what is the total number of species present on earth? Show Answer

Q166) Species diversity ______ as we move away from the equator towards the poles. Show Answer

Q167) What are the total number of hot spots present in the world? Show Answer

Q168) Where was the World Summit on Sustainable Development held? Show Answer

Q169) Which of the following phyla has largest number of species? Show Answer

Q170) What is the approximate percentage of the earth covered by terrestrial hot spots? Show Answer

Q171) Which is not an objective of Convention on Biodiversity? Show Answer

Q172) Sacred groves in India are found in Show Answer

Q173) The term "The Evil Quartet" is related with Show Answer

Q174) Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.
A. The number of species per unit area is called ___(i)___ and number of individuals of different species represent ___(ii)____.
B. Sunderlal Bahuguna started the ___(i)___ which resisted deforestation.
C. ___(i)___ contains a record of animals and plants which are known to be in danger and it is maintained by ___(ii)___.
D. ___(i)___ diversity is species diversity in a given community and ___(ii)___ diversity is present in ranges of communities over a total geographical area. Show Answer

Q175) The narrowly utilitarian arguments for conserving include which of the following from the given list?
I. Industrial products like dyes, lubricants.
II. Ecosystem services like photosynthesis.
III. Pollinators layer of bees, birds and bats.
IV. Firewood, fiber and construction material.
V. The aesthetic pleasure of walking through thick.
VI. Products of medicinal importance.
VII. Watching spring flowers in full bloom.
VIII. Our moral duty of care for the well-being of each species. Show Answer

Q176) Which of the following is incorrectly matched? Show Answer

Q177) Why are conservationists calling for immediate, and often expensive, action on behalf of endangered species and habitats? Show Answer

Q178) Which of the following is NOT a benefit that humans receive from a biologically diverse world? Show Answer

Q179) Which of the following is NOT associated with small populations? Show Answer

Q180) The theory of island bio-geography was first formally proposed by Show Answer

Q181) If log A = 4, z = 0.3 and log c = 0.8, what is log S? Show Answer

Q182) In island bio-geography c = Show Answer

Q183) Which of the following countries has the highest biodiversity? Show Answer

Q184) Historically, island species have tended to become extinct faster than species living on a mainland. Which of the following reasons can not be used to explain this phenomenon? Show Answer

Q185) An endemic species is Show Answer

Q186) Conservation hot spots are best describes as Show Answer

Q187) Most large whale species have been driven to the brink of extinction. Which of the following is the most accepted explanation for this situation? Show Answer

Q188) A keystone species is one that Show Answer

Q189) When the last member of a particular species dies, the species is said to be ________. Show Answer

Q190) Which of these statement is true? Show Answer

Q191) What is the difference between a threatened species and an endangered species? Show Answer

Q192) What is sustainable use? Show Answer

Q193) How much of the Earth's land surface have humans disturbed or degraded? Show Answer

Q194) Which method of tree harvesting is least destructive if conducted properly? Show Answer

Q195) According to conservation biologists, how much of the Earth's land surface should be strictly protected? Show Answer

Q196) Which of the following countries has the most deforestation today? Show Answer

Q197) The _______ encourages the division of protected areas into zones with different purposes and levels of human impact. Show Answer

Q198) Fill up the blanks -
Initially ___A___ biodiversity hot spots were identified but subsequently nine more have been added to the list, bringing the total number of biodiversity hot spots in the world to ___B___. These hot spots are also regions of accelerated habitat loss. Three of these hot spots - Western Ghats and Sri Lanka, Indo-Burma and Himalaya - cover our country's exceptionally high biodiversity regions. Although all the biodiversity hot spots put together cover less than ___C___ % of the earth's land area, the number of species they collectively harbour is extremely high and strict protection of these hot spots could reduce the ongoing mass extinctions by almost ___D___%. Show Answer

Q199) The concept of Hot-Spot was first introduced by Show Answer

Q200) One of the following statements is incorrect with reference to biodiversity. Identify it Show Answer

Q201) Biodiversity loss occurs due to -
A. Habitat loss and fragmentation
B. Co-extinction
C. Over-exploitation
D - Alien species invasion Show Answer

Q202) The characters of a stable community -
A. It shall not show too much variations in year-to-year productivity.
B. It must be either resistance or resilient to seasonal disturbance.
C. It must be resistant to invasion by alien species.
D. None Show Answer

Q203) The impacts of loss of biodiversity include -
A. Decrease in plant production.
B. Lowered resistance to environmental perturbation.
C. Increased variability in ecosystem processes like water use, pest/disease cycle, plants productivity.
D. None Show Answer

Q204) The number of critically endangered animals and plants in India is Show Answer

Q205) Which of the following statements describe natural extinction?
A. Extinctions abetted by human activities.
B. Slow replacement of existing species.
C. Also known as background extinction.
D. A small population is most likely to be extinct. Show Answer

Q206) The reasons behind conserving biodiversity can be group into categories which include -
A. Narrowly utilitarian
B. Broadly utilitarian
C. Ethical utilitarian
D. No utilitarian Show Answer

Q207) In situ strategies include -
A. Biosphere reserve
B. National park
C. Wildlife sanctuaries
D. Scared forest/lakes Show Answer

Q208) Ex situ strategies include -
A. Botanical garden
B. Zoos
C. Seed/Pollen banks
D. Gene bank and tissue culture Show Answer

Q209) A. More than 70 percent of all the species recorded are animals.
B. Out of every 10 animals on this planet, 7 are insects.
C. The number of fungi species in the world is more than the combined total of the species of fishes, amphibians, reptiles and mammals.
D. Number of fishes is very less than the that of mammals. Show Answer

Q210) Sacred groves are found in -
A. Khasi and Jaintia Hills in Meghalaya
B. Aravalli Hills of Rajasthan
C. Western ghat regions of Karnataka and Maharashtra and Sarguja, Chanda and Bastar areas of Madhya Pradesh
D. None Show Answer

Q211) According to the concept of species area relations Show Answer

Q212) A species area relation is used by ecologists to Show Answer

Q213) What effect, if any, would the extinction of a mutualistic pollinator have on the plant it pollinates? Show Answer

Q214) Which is/are correct about Amazon rain forest?
A. It is called Lungs of the planet.
B. It is being cut and cleared for cultivating soya beans or for conversion to grasslands for raising beef cattle.
C. The largely trophical rain forest in South America has highest biodiversity on earth.
D. It harbours probably million of species. Show Answer

Q215) Select the correct statement(s) -
A. India has more than 50,000 genetically different strains of rice.
B. India has 1000 varieties of mango.
C. The genetic variation in Rauwolfia vomitoria can be in terms of conc and potency of reserpine.
D. The tropical rain forest initially covered 14% of the land surface of earth, but now they cover only 6% of the land area. Show Answer

Q216) An exotic species that is introduced to a new area, spreads rapidly and eliminates native species is called Show Answer

Q217) The exotic species, introduced in India are Show Answer

Q218) Which of the following fishes is exotic species introduced in India for aquaculture Show Answer

Q219) More than 25% of drugs are derived from plants. What benefits does this describe? Show Answer

Q220) Exploring molecular, genetic and species-level diversity for products of economic importance like medicines is called Show Answer

Q221) Modern Ex situ conservation includes Show Answer

Q222) Ex situ conservation is used for the conservation of Show Answer

Q223) Select incorrect statement Show Answer

Q224) Which of the following is an example of alien species invading a new ecosystem resulting in biodiversity losses? Show Answer

Q225) In recent years the number of species driven to extinction has increased dramatically. Which of the following is not a reason for this? Show Answer

Q226) Which parameter of a population do ecologists measure to assess extinction risk for a population? Show Answer

Q227) When a species goes extinct in one area, it is often desirable to reintroduce the species from other populations. A major problem with this approach is that Show Answer

Q228) Why do species extinctions matter? Show Answer

Q229) _______ ecology is a sub-discipline of conservation biology the goal of which is to mend damaged and degraded ecosystems. Show Answer

Q230) Which of the following methods could be used to restore a population of animals from a few male and female individuals. Show Answer

Q231) Of the following organisms which has the highest conservation priority? Show Answer

Q232) Which of the following statements is true concerning the relationship between humans and the rest of the living world? Show Answer

Q233) The number of species that become extinct due to habitat destruction is greatest in _________ ecosystems with many ______ species. Show Answer

Q234) Major causes of human-induced extinctions of species include all of the following except Show Answer

Q235) Which of the following is not a reason to protect biodiversity? Show Answer

Q236) Which of the following is not currently a major cause of species extinctions? Show Answer

Q237) A species that is found only in a particular region is said to be Show Answer

Q238) Which of the following statements about species area relationships and their consequences for extinction rates is false? Show Answer

Q239) Which of the following is true?
A. The biological wealth of our plant has been declining rapidly and the accusing finger is clearly pointing to human activities.
B. The colonization of tropical pacific Island by humans is said t be have led to the extinction of more than 2,000 species of native bird.
C. The IUCN Red list (2004) documents the extinction of 784 species in last 500 years. Show Answer

Q240) Which one of the following is false about Habitat loss and fragmentation? Show Answer

Q241) Term biodiversity was utilized to describe the combined diversity at all the levels of biological organization by Show Answer

Q242) Global species diversity and land area covered by India with respect to world is Show Answer

Q243) The cause/causes for species richness of tropics is/are Show Answer

Q244) Anthropogenic extinction is called Show Answer

Q245) Amazon rain forests are considered as lungs of the planet as they contribute _______ of the total oxygen in the earth's atmosphere. Show Answer

Q246) Introduction of alien species into new area possess a threat to extinction of indigenous species due to Show Answer

Q247) There are genetic variation shown by medicinal plant Rauwolfia Vomitoria. This plant growing in which one of the following regions. Show Answer

Q248) Arrange the following places in increasing order of biodiversity of species of birds and select the right option. Show Answer

Q249) From the following statements you have to select the right option of right statements what were shown by David Tilman. Who performed long term ecosystem experiment using outdoor plots.
A. Plots with more species showed less year-to-year variation in total biomass.
B. Plots with less species showed less year-to-year variation in total biomass.
C. Increased diversity contributed to higher productivity.
D. Plots with more species showed more year-to-year variation in total rainfall. Show Answer

Q250) How many percent of the earth's land area is covered by all the biodiversity hot spots. Show Answer

Q251) Select a correct match Show Answer

Q252) Which of the following is false? Show Answer

Q253) In the formula log S = log C + Z log A, ecologist have discovered that the value of z lies in the range of Show Answer

Q254) Which of the following does not belong to The Evil Quartet Show Answer

Q255) Which of the following is correct?
A. Three of the hot spot - Western Ghats and Sri Lanka, Indoburma and Himalaya cover our country's exceptionally high biodiversity region.
B. India now has 14 biosphere reserves, 90 national parks and 448 wildlife sancturies.
C. Ex situ conservation - In this approach, threatened animals and plants are taken out from their natural habitat and placed in special setting. Show Answer

Q256) The world summit on sustainable development held in 2002 in Johannesburg, South Africa, how many countries pledged their commitment to achieve by 2010. Show Answer

Q257) How much times have forests been lost in the tropics compared to the temperate region Show Answer

Q258) Approximately what proportion of the global land surface is used for agriculture and grazing by the world's 6 billion people? Show Answer

Q259) What is the primary reason for targeting 'biodiversity hot spots' for conservation? Show Answer

Q260) Given below are three statements (A-C) each with one or two blanks. Select the option which correctly fills up the blanks.
Statements:
Ecologists and evolutionary biologists have proposed various hypotheses; some important ones are
A. Speciation is generally a function of time ___I___ regions were subjected to frequent glaciations in the past, ___II___ have remained relatively undisturbed for millions of years and thus, had a long evolutionary time for species diversification.
B. ____III____ environments, unlike temperate ones, are less seasonal, relatively more constant and predictable. Such constant environments promote niche specialization and lead to a greater species diversity.
C. There is more solar energy available in the ____IV____, which contributes to higher productivity; this is turn might contribute indirectly to greater diversity. Show Answer

Q261) Which of the following statement is true?
A. Logo of WWF-N is Red Panda.
B. Organization responsible for maintaining Red Data Book/Red List is IUCN.
C. Genetic diversity in agricultural crops is threatened by introduction of high yielding varieties.
D. In India, we find mangoes with different flavours, colours, fiber-content, sugar content and even shelf-life. The large variation is on account of genetic diversity.
E. The world biodiversity day is celebrated annually on 29th December. Show Answer

Q262) Which hypothesis suggests ecosystems are like aeroplane wings where flight (ecosystem functioning) may or may not be compromised depending upon which species are lost Show Answer

Q263) Sacred groves are specially useful in Show Answer

Q264) Select the correct statement about biodiversity Show Answer

Q265) India has only 2.4% of the world's land area but its share of the global species diversity is Show Answer

Q266) Total number of identified biodiversity hotspots in the world is Show Answer

Q267) Kanha National Park is located in _______ and is famous for ______. Show Answer

Q268) Which one of the following areas in India, is a hotspot of biodiversity Show Answer

Q269) The highest number of species in the world is represented by Show Answer

Q270) Maximum nutritional diversity is found in the group. Show Answer

Q271) Which one of the following is not used for ex situ plant conservation? Show Answer

Q272) Humans have introduced alien species into the environment in all these ways except _____. Show Answer

Q273) An example of ex situ conservation is Show Answer

Q274) A species facing extremely high risk of extinction in the immediate future is called Show Answer

Q275) The organization which publishes the Red List of species is Show Answer

Q276) Read the statements regarding a stable community and choose the correct option.
I. Must be resistant to occasional disturbances.
II. Should show much variation in productivity from year to year.
III. Must be resistant to invasions by alien species. Show Answer

Q277) Find the wrongly matched pair. Show Answer

Q278) Find the wrongly matched pair. Show Answer

Q279) The animal species controlling the ecosystem functioning is known as Show Answer

Q280) An area is declared as "Hot spot" when Show Answer

Q281) Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as Show Answer

Q282) In which of the following both pairs have correct combination? Show Answer

Q283) The species confined to a particular region and not found elsewhere is termed as Show Answer

Q284) The largest tiger reserve in India is Show Answer

Q285) Oran is a Show Answer

Q286) India is one of the 'twelve' megadiversity countries with _______ of genetic resources of the world Show Answer

Q287) Which one of the following is not a major characteristic feature of biodiversity hot spots? Show Answer

Q288) What is common to the following plants? Nepenthes, Psilotum, Rauwolfia and Aconitum Show Answer

Q289) Amongst the animal groups given below, which one has the highest percentage of endangered species? Show Answer

Q290) For frugivorous birds and mammals in the tropical forests of different continents, Z (slope of the line/regression coefficient) is found to be Show Answer

Q291) During the analyzing the surface area relationship among very large area like entire continents, the slope of the line is found much steeper and the Z values ranges Show Answer

Q292) Most of the species that are yet undiscovered are probably Show Answer

Q293) Which of the following is the most important cause of animals and plants being driven to extinction? Show Answer

Q294) How many hot spots of biodiversity in the world have been identified till date by Norman Myers? Show Answer

Q295) Which of the following is correctly matched? Show Answer

Q296) Red list contains data or information on Show Answer

Q297) Which of the following National Parks is home to the famous musk deer or hangul? Show Answer

Q298) Chipko movement is concerned with Show Answer

Q299) A renewable exhaustible natural resource is Show Answer

Q300) The phenomenon by which certain pollutants (e.g. DDT) accumulate in body tissue in increasing concentration is called Show Answer

Q301) In an aquatic food chain polluted by DDT, the tissue concentration of DDT would be highest in Show Answer

Q302) Algal bloom is caused by Show Answer

Q303) Minamata disease is caused by contamination of Show Answer

Q304) Increase skin cancer and high mutation rate are the result of Show Answer

Q305) Two lakes A & B are identical in all aspects except that lake A has higher temperature. Which of the following is true? Show Answer

Q306) In Effluent Treatment Plants (ETPs) at which stage micro-organism treatment in provided? Show Answer

Q307) In treatment of waste water biological treatment is Show Answer

Q308) By what degrees has the mean global temperature increased in the 20th century? Show Answer

Q309) Which is non-degradable pollutant? Show Answer

Q310) Which of the following is a natural pollutant? Show Answer

Q311) As the organic waste input in a water body increases Show Answer

Q312) Pick out the correct choice from the following Show Answer

Q313) What are the organisms that can tolerate high degrees of pollution called as? Show Answer

Q314) When and where the Ozone hole was discovered? Show Answer

Q315) The Earth Summit, 1992, was held at Show Answer

Q316) In India, Jhum cultivation is practiced mainly in Show Answer

Q317) Thickness of ozone is measured in Show Answer

Q318) Green muffler is used against which type of pollution? Show Answer

Q319) Given below are the four statements each with two blanks. Select the option which correctly fills up the blank in any two statements.
A. Bhopal gas disaster took place on ____(i)____ 1984 and this day is now observed as the ____(ii)____ day in India.
B. ____(i)___ is degradable pollutant while ____(ii)_____ is non-degradable pollutant.
C. When pollutants are released from a single point is called ___(i)____ pollution, but when it is over a large area, then it is called ____(ii)____ pollution.
D. ___(i)___ is the world's most problematic aquatic weed, introduced in India for their lovely flowers, also called ____(ii)___ of Bengal. Show Answer

Q320) Which of the following is correct about "El Nino effect"? Show Answer

Q321) Which of the following is/are correct regarding Montreal Protocol?
I. Persistent organic pollutants.
II. Global warming and climate change.
III. To control the emission of ozone depleting substances.
IV. Bio-safety of genetically modified organisms. Show Answer

Q322) In India, the Air (Prevention and Control of Pollution) Act came into force in 1981 but was amended in 1987 to include Show Answer

Q323) The effect of today's radioactive fall out will be harmful to children of future generation than to children of present because Show Answer

Q324) When domestic sewage mixes with river water Show Answer

Q325) ______ are used in electrostatic precipitators Show Answer

Q326) Biological oxygen demand of _______ is the least. Show Answer

Q327) Due to eutrophication _______. Show Answer

Q328) _____ is the first step of sewage treatment. Show Answer

Q329) We and our surroundings together are called Show Answer

Q330) Which of the following is not an environmental problem? Show Answer

Q331) Volcano is _______ source of pollution. Show Answer

Q332) Which method is used for the removal of sulphur dioxide and ammonia from the polluted air? Show Answer

Q333) BOD is _______ in polluted water and _______ in potable water. Show Answer

Q334) Which pollutants are responsible for bronchitis? Show Answer

Q335) Which method is used to control pollutants of particulate nature? Show Answer

Q336) Which of the following figures shows correct relative contribution of greenhouse gases to global warming? Show Answer

Q337) Pollution in big cities can be controlled to a large extent by -
A. Improving traffic condition and road.
B. Road side plantation.
C. Proper disposal of garbage and domestic as well as municipal wastes.
D. Cannot be controlled. Show Answer

Q338) Primary pollutants used in the synthesis of photochemical smog are Show Answer

Q339) DDT -
A. is a non-degradable pollutant
B. shows bio-magnification
C. is harmful to fishes and birds
D. is a pesticide Show Answer

Q340) Which of the following will be found in polluted water?
A. B. G. A.
B. Larvae of stonefly
C. Water hyacinth
D. Sewage fungi Show Answer

Q341) Identify the correct matches -
A. Environmental (protection) act, 1986 - Protection and quality improvement of air, water and soil.
B. Kyota protocol - To mitigate climate change, to reduce green house gases.
C. Montreal protocol - ODS reduction.
D. Chipko movement - Trees protection. Show Answer

Q342) There are working, 'EcoSan' toilets in many areas of Show Answer

Q343) Which statement is false? Show Answer

Q344) DDT causes Show Answer

Q345) Which of the following is true -
A. Pollution is any undesirable change in physical, chemical or biological characteristic of air, land water or soil.
B. Agents that bring about such an undesirable change are called pollutants.
C. In order to control environmental pollution, the Government of India has passed the environment (Protection) Act, 1976 to protect and improve the quality of our environment. Show Answer

Q346) Which of the following is true about composition of waste water?
A. Suspended solids e.g. Sand, silt and clay - 0.1%.
B. Colloidal material e.g. Faecal matter, bacteria, cloth and paper fibres - 0.1%.
C. Dissovled materials e.g. Nutrients, (Nitrate, Ammonia, Phosphate, Calcium) - 0.1%.
D. All of the above together constitute 0.1% of the waste water. Show Answer

Q347) The most widely used method for removing particulate matter is not associated with which of the following? Show Answer

Q348) Concentration of DDT for first trophic level (phytoplanktons) and top trophic level (fish eating birds) is respectively in aquatic food chains if DDT is 0.003 ppb in water is Show Answer

Q349) Cleaning of waste water in Arcata Marsh involves Show Answer

Q350) Eco-san toilets are not associated with which of the following? Show Answer

Q351) Choose the correct sequence of greenhouse gases with respect to their relative contribution to global warming in increasing order Show Answer

Q352) Choose the odd one our w.r.t. ozone depletion in the stratosphere Show Answer

Q353) Bio-magnification refers to increase in concentration of the toxicant at successive trophic levels, this happens because Show Answer

Q354) After the conventional sedimentation, filtering and chlorine treatment, lots of dangerous pollutants still remain. To combat this, the biologists developed a series of six connected marshes when appropriate plants, algae, fungi and bacteria were seeded into this area, which -
A. Neutralise the pollutants
B. Absorb the pollutants
C. Assimilate the pollutants Show Answer

Q355) How much of the e-wastes generated in the developed world are exported to developing countries Show Answer

Q356) The world summit on sustainable development held in 2002 in _____, _____ countries pledged their commitment to achieve by 2010. Show Answer

Q357) As the exhaust passes through the catalytic converter Show Answer

Q358) Photochemical smog differs from classical/London smog in Show Answer

Q359) An international initiative taken in _______ to mitigate climate change and to reduce greenhouse emission is called _______. Show Answer

Q360) The thickness of ozone over poles changes with the season being lowest in Show Answer

Q361) Read the following statements given here below and select the right answer -
A. Kyoto protocol, 1997 conference obtained commitments from different countries for reducing overall green house gas emission at level 5% below 1990 by 2008 - 2012.
B. Montreal protocol was signed in 1987.
C. Montreal protocol became effective in 1989.
D. Montreal protocol was signed to control the emission of ozone depleting substances. Show Answer

Q362) Amrita Devi Bishnoi Wildlife protection Award is given to the individuals or communities from Show Answer

Q363) The Ozone hole over Antarctica develops each year between Show Answer

Q364) In collaboration with which one, Ahmad Khan proved that blends of polyblend and bitumen, when used to lay roads, enhanced the bitumen's water repellent properties and helped to increase road-life by a factor of three. Show Answer

Q365) Heavy metals defined as elements with density ________ are harmful to ecological systems. Show Answer

Q366) All automobiles and fuel-petrol and diesel were to have met the Euro III emission specifications in some cities from 1 April 2005 and have to meet the Euro IV norms by Show Answer

Q367) What was the focus of Rachel Carson's book Silent Spring in 1962? Show Answer

Q368) Which of the following is not one of the major environment problems resulting from human interference in the nitrogen cycle? Show Answer

Q369) Which of the following is not a major positive feedback mechanism in which the activity of humans to increase global climate temperatures leads to an even further increase? Show Answer

Q370) Which of the following is not a greenhouse gas? Show Answer

Q371) Which of the following statements about eutrophication are TRUE?
1. It can be a naturally occurring process.
2. It is commonly found in standing rather than running water.
3. It can lead to oxygen depletion.
4. It is commonly associated with high levels of nitrates and sulphates.
5. It is commonly associated with high levels of phosphates and nitrates. Show Answer

Q372) The device on an automobile that filters harmful pollutants out of the exhaust before it enters the air is a(n) _______. Show Answer

Q373) What did Chernobyl, Three Mile Island, the Love Canal, and Bhopal, India all have in common? Show Answer

Q374) What contributes the most to acid rain? Show Answer

Q375) Which of the following techniques is not example of bioremediation or phytoremediation? Show Answer

Q376) A dose that is represented as LD50. Show Answer

Q377) Some organic waste pollutants are of recent concern because they can act as endocrine disruptors which means they Show Answer

Q378) Temperature inversions, heat islands, and dust domes are the result of ______. Show Answer

Q379) The thickness of ozone in the column of air from the ground to top of the atmosphere is measured in terms of Show Answer

Q380) The phenomenon where cool, dense air sits under a layer of lighter warmer air is known as a _______. Show Answer

Q381) Which one is incorrect? Show Answer

Q382) The addition of sewage and other organic material into a water supply _______. Show Answer

Q383) The ozone in the earth's atmosphere screens out Show Answer

Q384) What part of the atmosphere contains the ozone layer? i.e. where is most of the ozone? Show Answer

Q385) I. Part of ozone is destroyed over poles during polar spring.
II. Ozone present in stratosphere filters out UV-B.
III. Ozone hole over Antarctica was first detected by Farman et al.
IV. Ozone hole over Antarctica appears during August, September.
V. CFCs split up in stratosphere to release chlorine by the action of UV-C.
Which of the above statements is false? Show Answer

Q386) You can protect yourself from too much exposure to UV radiation by taking two of the following precautions. Which two? Show Answer

Q387) Although the production of ozone depleting CFCs is being controlled by the Montreal Protocol, CFCs are still found in certain products in many industrialized countries. Which of the following two may contain CFCs? Show Answer

Q388) The single best way to reduce acid deposition would be to Show Answer

Q389) Which of the following contributes to both global warming and ozone thinning? Show Answer

Q390) Which part of the CFC molecule attacks ozone? Show Answer

Q391) I. Montreal Protocol was signed in 1987.
II. Earth summit 1992 was held at Rio-de-Janeiro.
III. World Environment Day is 5 June.
IV. World Environment Day coincides with commemoration of First United Nations Conference on Human Environment.
V. At Do below 4 mg/L, water at normal temperature is heavily polluted.
Which of the above statements is correct? Show Answer

Q392) Since the Montreal Protocol was signed Show Answer

Q393) Water with a dissolved oxygen content (DO) of 8 to 9 ppm is considered Show Answer

Q394) Cultural or Accelerated Eutrophication lakes is most often caused by input of Show Answer

Q395) Which of the following is a major ground water pollutant in parts of Indian and Bangladesh? Show Answer

Q396) Secondary sewage treatment Show Answer

Q397) Which of the following is considered the greatest problem associated with the use of pesticides? Show Answer

Q398) Fill up the blanks:
A. Clouds and gases reflect about ___I___ of the incoming solar radiation, and absorb some of it but almost half of incoming solar radiation falls on Earth's surface heating it, while a small proprotion is reflected back. Earth's surface re-emits heat in the form of ____II____ radiation but part of this does not escape into space as atmospheric gases (e.g. carbon dioxide, ___III____, etc.) absorb a major fraction of it.
B. During the past century, the temperature of Earth has increased by ___I___ most of it during the last three decades. Scientists believe that this rise in temperature is leading to deleterious changes in the environment and resulting in odd climatic changes (e.g. ___II___), thus leading to increased melting of polar ice caps as well as of other places like the Himalayan snow caps.
C. In human eye, cornea absorbs UV-B radiation, and a high does of UV-B causes inflammation of cornea, called ___I____, cataract, etc. Such exposure may permanently damage the cornea. Show Answer

Q399) Fill up the blanks :
A. ___I____ were adopted as the substitute for open-burning dumps. In a ___II___, wastes are dumped in a depression or trench after compacting and covered with dirt everyday.
B. Deforestation is the conversion of forested areas to non-forested ones. According to an estimate almost ___I___ percent forests have been lost in the tropics, compared to only ___II___ percent in the temperature region. The present scenario of deforestation is particularly grim in India. At the beginning of the twentieth century forests covered about ____III___ percent of the land of India. By the end of the century, it shrunk to ___IV___ percent, whereas the National Forest Policy (1988) of India has recommended 33 percent forest cover for the plains and 67 percent for the hills. Show Answer

Q400) One of the consequences of EI Nino is a decline in the number of fish caught along the coasts of Ecuador and Peru. This decline is primarily because Show Answer

Q401) Pollution of big cities can be controlled to large extent by Show Answer

Q402) Among the following environmental pollutants which has the problem of bio-magnification Show Answer

Q403) The compound mainly responsible for pollution which caused the ill famed Bhopal gas tragedy was Show Answer

Q404) UV radiation is injurious to plants because it Show Answer

Q405) The Kyoto Protocol specifies regulation on the emission of green house gases. It defines a term known as "Carbon-Credits". The following statements pertain to Carbon-Credits:
I. The mandatory limit of Carbon-Credit for each country is directly proportional to its size and population.
II. One Carbon-Credit defines the emission on one ton of carbon dioxide or equivalent gases responsible for green-house effect.
III. Carbon-Credits are exchangeable among countries/industries. I. An industry emitting higher than prescribed limit can do so by purchasing Carbon-Credits. Which of the above statements are true? Show Answer

Q406) "Good ozone" is found in the Show Answer

Q407) Which of the following is a chlorofluocarbon? Show Answer

Q408) Mass of living matter at a trophic level in an area at any time is called? Show Answer

Q409) Secondary sewage treatment is mainly a Show Answer

Q410) Which one of the following expanded forms of the following acronyms is correct? Show Answer

Q411) The domestic sewage in large cities Show Answer

Q412) If a water body is contaminated with a toxicant, its bio-magnification will be more marked in Show Answer

Q413) Environment Protection Act, to protect and improve the quality of our environmental air, water and soil was passed in the year Show Answer

Q414) In domestic sewage, impurities in the form of suspended solids, colloidal material and dissolved materials, are about Show Answer

Q415) The range of bio-magnification of DDT in an aquatic food chain, if starting from 0.003 ppb level in water may go at fish-eating bird level up to Show Answer

Q416) In an area where DDT has been used extensively, the population of birds declined significantly because Show Answer

Q417) Which one of the following is a wrong statement? Show Answer

Q418) Measuring Biochemical Oxygen Demand (BOD) is a method used for Show Answer

Q419) Which of the following statements regarding the greenhouse effect has the lowest degree of certainty? Show Answer

Q420) Which of the following air pollutants has shown the greatest decline in recent years? Show Answer

Q421) Bhopal gas tragedy of 1984 took place because methyl isocyanate reacted with Show Answer

Q422) Go through the statements.
I. Domestic waste is biodegradable.
II. First effect of noise is anxiety and stress reaction.
III. Climate of the world is threatened by increasing amount of atmospheric carbon dioxide.
IV. BOD is related to inorganic pollutants.
V. Acidic rain is due to water pollution.
VI. Global warming will cause rise in level of ocean and in ice-caps.
How many of the above statements are wrong? Show Answer

Q423) The ideal modern sewage system is one in which Show Answer

Q424) The term activated sludge is used for a common secondary treatment technique because Show Answer

Q425) One impediment to the use of treated sludge as agricultural fertilizer is Show Answer

Q426) Global warming can be controlled by Show Answer

Q427) The Air Prevention and Control of Pollution Act came into force in Show Answer

Q428) Kyoto Protocol was endorsed at Show Answer

Q429) A citizen group called Friends of the Arcata Marsh (FOAM) basically belongs to Show Answer

Q430) Warm ocean surge of Peru current that recurs after 5-8 years in East Pacific along South America is Show Answer

Q431) A location with luxuriant growth of lichens on the trees indicates that the Show Answer

Q432) The zone of atmosphere in which the ozone layer is present is called Show Answer

Q433) A scrubber in the exhaust of a chemical industrial plant removes Show Answer

Q434) Main cause of Eutrophication is Show Answer

Q435) Which of the following is true for eutrophicated water body? Show Answer

Q436) If there was no carbon dioxide in the earth's atmosphere, the temperature of the earth surface would be Show Answer

Q437) The prime contaminants in lakes eutrophied by sewage and agricultural wastes are Show Answer

Q438) The process of nutrient enrichment of water, and subsequent loss of species diversity is referred to as Show Answer

Q439) What percentage of impurities make domestic sewage unfit for human use? Show Answer

Q440) Go through the following statements.
A. It is the natural aging of a lake by nutrient enrichment of its water.
B. In a young lake the water is cold and clear and supports less life.
C. The nutrients such as sulphur and phosphorus encourage the growth of aquatic organisms in the lake.
D. Pollutants released by man radically accelerate the aging process of a lake.
E. Overgrowth of algae leads to scum that depletes the level of dissolved oxygen in the water.
Which of the above statements does not apply to eutrophication? Show Answer

Q441) The second commitment period of Kyoto Protocol was extended from Show Answer

Q442) Who proved that blends of polyblend (plastic waste) and bitumen, when used to lay roads, enhanced the bitumen's water repellent properties and helped to increase road life? Show Answer

Q443) The polluting strength of sewage is usually characterized by its. Show Answer

Q444) Which of the following would most likely help to slow down the greenhouse effect? Show Answer

Q445) Wildlife Protection Act India was implemented in the year Show Answer

Q446) Which one of the following combinations is wrong? Show Answer

Q447) Relationship between DO an BOD is that they Show Answer

Q448) Select the correct statement(s) pertaining to Chipko movement.
I. It was led by Sunderlal Bhauguna.
II. It was a tree hugging movement.
III. It commenced in the Tehri-Garhwal district.
IV. It received global attention on environmental protection. Show Answer

Q449) Select the non-degradable pollutant(s) from the following.
I. Plastic
II. Organochloride pesticides
III. Heavy metals
IV. Domestic sewage Show Answer

Q450) Now-a-days, use of DDT as insecticide is banned because Show Answer

Q451) Rachel Carson's famous book "Silent Spring" is related to Show Answer

Q452) Which of the following is not one of the prime health risks associated with greater UV radiations through the atmosphere due to depletion of stratospheric ozone? Show Answer

Q453) High value of BOD (Biochemical Oxygen Demand) indicates that Show Answer

Q454) The UN Conference of Parties on climate change in the year 2011 was held in Show Answer

Q455) Acid rain is caused by increase in the atmospheric concentration of Show Answer

Q456) Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of Show Answer

Q457) The UN conference of Parties on climate change in the year 2012 was held at Show Answer

Q458) Increase in concentration of the toxicant at successive trophic levels is known as Show Answer

Q459) Recently Paris held a CoP summit, which CoP summit was this? Show Answer

Q460) Give the full form of CoP in ecology Show Answer

Q461) Joint Forest Management Concept was introduced in India during Show Answer

Q462) A river with an inflow of domestic sewage rich in organic waste may result in Show Answer

Q463) Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers Show Answer

Q464) A lake which is rich in organic waste may result in Show Answer

Q465) The highest DDT concentration in aquatic food chain shall occur in Show Answer

Q466) Phenomenon involved in increasing the concentration of non-degradable pollutants in a trophic level of an ecosystem is called Show Answer

Q467) 'Ozone layer' is located in Show Answer

Q468) Which of the following combination is wrong? Show Answer

Q469) Which of the following binds with haemoglobin irreversibly? Show Answer

Q470) Black-foot disease is caused due to polluation of ground water as a consequence of increased seepage of Show Answer