Biology - Environmental Pollution and Global Environmental Change
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This is MCQs of Biology
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Question 1 of 50
1. Question
Freshwater natural resources receive pollutants from:
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Question 2 of 50
2. Question
Residual effect of DDT is upto:
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Question 3 of 50
3. Question
Turbidity of water in freshwater bodies is measured using:
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Question 4 of 50
4. Question
Polluted water not fit for drinking refers to:
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Question 5 of 50
5. Question
The most safest water resource, which is to be used for drinking, is:
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Question 6 of 50
6. Question
Acid rains have pH nearly :
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Question 7 of 50
7. Question
Most noxious gas of vehicular pollution is:
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Question 8 of 50
8. Question
Cooling gas used in refrigeration is:
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Question 9 of 50
9. Question
Ozone layer occurs in:
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Question 10 of 50
10. Question
Lightening and thunder occur in:
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Question 11 of 50
11. Question
BOD value indicates pollution load in:
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Question 12 of 50
12. Question
Level of noise is measured in terms of:
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Question 13 of 50
13. Question
Level of noise should be below 40 dB in:
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Question 14 of 50
14. Question
Noise directly affect the:
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Question 15 of 50
15. Question
Electrostatic precipitator is used to reduce:
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Question 16 of 50
16. Question
Lichens are best indicator of:
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Question 17 of 50
17. Question
Catalytic converter is used to redu se:
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Question 18 of 50
18. Question
Lead pollution occurs in:
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Question 19 of 50
19. Question
Lead is used as antiknock compound with:
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Question 20 of 50
20. Question
Level of dissolved oxygen in a freshwater body should not decrease below:
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Question 21 of 50
21. Question
Particulate matter causes:
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Question 22 of 50
22. Question
Rock- cancer is caused by:
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Question 23 of 50
23. Question
Biological pollutants of drinking water supply are:
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Question 24 of 50
24. Question
LD50 and LD100 doses are determined while using:
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Question 25 of 50
25. Question
BHC and aldrin are:
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Question 26 of 50
26. Question
Pollens of Xanthium and parthenium causes:
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Question 27 of 50
27. Question
Pollution caused by silica dust or iron dust leads to:
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Question 28 of 50
28. Question
Chimobyl Nuclear Mishap occurred in:
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Question 29 of 50
29. Question
CPCB stands for:
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Question 30 of 50
30. Question
Pollens of Xanthium and Parthenium causes:
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Question 31 of 50
31. Question
Pollution free source of energy on earth is:
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Question 32 of 50
32. Question
Air pollution is caused by:
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Question 33 of 50
33. Question
Volcanoes cause:
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Question 34 of 50
34. Question
Excess of nitrate in drinking water system causes:
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Question 35 of 50
35. Question
Biological magnification is reported in pollution caused by:
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Question 36 of 50
36. Question
The most important factor for the formation of photochemical smog is :
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Question 37 of 50
37. Question
Find out the correct statement:
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Question 38 of 50
38. Question
One molecule of CFC can decompose:
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Question 39 of 50
39. Question
Ozone layer in atmosphere is the:
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Question 40 of 50
40. Question
Ozone hole has been first observed near:
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Question 41 of 50
41. Question
Photochemical smog is a:
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Question 42 of 50
42. Question
Polynculear Aromatic Hydrocarbon (PAH) is produced by:
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Question 43 of 50
43. Question
Carboxy – haemoglobin is formed when haemolobin combine with
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Question 44 of 50
44. Question
Parathion and Malathion kill the insects by causing:
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Question 45 of 50
45. Question
Pyrethrum is a:
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Question 46 of 50
46. Question
Greenhouse gases are:
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Question 47 of 50
47. Question
Level of carbon dioxide, in present day atmosphere, is nearly:
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Question 48 of 50
48. Question
Maximum global warming is due to presence f higher amount of:
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Question 49 of 50
49. Question
Methane is released from:
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Question 50 of 50
50. Question
Maximum penetration power is found in:
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