20sep biology test 12th

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BIOLOGY TEST-XII (Obj.)

Topic-

MAX.Mark-30 Date-20/09/2015 Time:1Hr.

1. A species spread over a large tract with varied environmental conditions will havea) higher genetic diversity b) uniform gene poolc) little genetic diversity d) both (2) and (3)

2. Plants comprise not more thana) 20 per cent of the total species b) 22 per cent of the total speciesc) 32 per cent of the total species d) 30 per cent of the total species

3. New approach to conservation is the establishment ofa) sanctuaries b) biosphere reserves c) national park d) reserve forests

4. Ex situ conservation is the term applied toa) protection of biosphere reserves b) creation of wildlife sanctuariesc) prevention of poaching in protected forestsd) breeding of endangered species in zoological parks

5. The Siberian crane from Russia is a regular visitor to the bird sanctuary in one of the following place in india.a) lallbagh, Bangalore b) Vendanthgol sanctuary, Tamil Naduc) Ranganathittis sactuary, Karnataka d) Bharatpur sanctuary, Rajasthan

6. Which protected animal is the logo/symbol of WWF-N?a) lion b) polar baer c) tiger d) panda

7. How many megadiversity countries are there is the world?a) 12 b) 21 c) 24 d) 8

8. In the IUCN red book which category has maximum extinction of species in the last 500 years?a) vertebrates b) invertebrates c) plants d) birds

9. Who gave the “Rivet popper hypothesis”?a) E.P.Odum b) Ram Deo Misra c) Paul Ehrlich d) A. Tansley

10. Chipko movement was first led bya) sundarlal Bahuguna b) Rajiv Gandhic) Ramdev Mishra d) Indra Gandhi



11. 5th june is celebrated asa) World Typhoid day b) World AIDS dayc) World Environment day d) World Tobacco day

12. The highest number of species in the world is represented bya) Mosses b) Algae c) Lichens d) Fungi

13. Which one of the following areas in india is a hotspot of biodiversity?a) Gangetic Plan b) Sunderbans c) Western Ghats d) Eastern Ghats

14. Kaziranga wild life sanctuary is home for a) golden langur b) waters birds c) Rhino d) porcupine

15. Which region on the planet earth is rich in species diversitya) north pole b) temperate region c) tropical region d) south pole

16. A normal component of environment which because pollutant when its concentration crosses a threshold values is calleda) quantitative pollutant b) qualitative pollutantc) degradable pollutant d) physical pollutant

17. Carbon monoxide is a pollutant as ita) inactivates nerves and causes numbness b) inhibits glycolysisc) combines with oxygen and shifts oxygen dissociation curved) combines with haemoglobin and displaces oxygen

18. In almost all Indian metropolitan cities like Delhi major air pollutant isa) SPM b) SOx c) NOx d) CO & CO2

19. A rain is called acid rain when its pH is usuallya) less than 7 b) less than 5 c) less than 4.6 d) less than 2

20. Acid rain is due to increase in atmospheric concentration ofa) ozone and dust b) CO2 and CO c) SO3 and CO d) SO2 and NO2

21. Ultraviolet rays in sunlight cause a reaction that produces the pollutanta) CO B) CH4 c) SO2 d) O3

22. The Chernobyl disaster in the then USSR(now Ukraine) was caused on 26.4.1986 by aa) pesticide factory accident b) nuclear factory accidentc) nuclear waste disposal d) nuclear weapon accident

23. Ozone day isa) January, 30 b) September, 16 c) april,21 d) December, 25

24. The first rate pollution monitor area) molluscsans b) butterflies c) honey bee d) plants



25. Entry of sewage in water caused a spurt in the growth of algae but killed fish due toa) decrease in nutrients b) reduction in lightc) depletion of oxygen d) all of the above

26. Which is a useful indicator of Eutrophication?a) BOD b) CFC c) DDT d) 2,4-D

27. Jhuming ( shifting cultivation) requiresa) hung amount of fertilizers b) long time for the regeneration of soilc) excessive soil erosion for crop production d) very less amount of fertilizers

28. A disease caused by eating fish contaminated by industrial waste water containing mercury compounds ( HgCl) is known asa) Hiroshima disease b) Minamata disease c) Bright’s disease d) Osteoschlerosis

29. NEERI (preciously known as CPHERI) isa) National Environmental Engineering Research Institute, Nagpurb) National Ecological and Environmental Research Institute, Punec) National Engenics and Ecological Research Institute, Mumbaid) National Ethological and Ecological Research Institute, New Delhi

30. Due to attack of fumes of SO2 and H2SO4, the marble (CaCO3) of Taj Mahal and Red stone of Red fort changed into calcium sulphate which is bulky and causesa) stone leprosy b) stone mosaic c) corrosion d) none of these

20sep biology test 12th

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