14000+ MCQs Environment & Ecology(Pollution)
Total Questions:- 50
Time:- 30 Minutes
MCQ Pattern
Date:- 02/11/2026
2. Which of the following is produced during the formation of photochemical smog?
3. Which one of the following is responsible for blue baby syndrome?
4. Biomagnification refers to an increases in the number/content/quantity of
5. Why is there a great concern about the ‘microbeads’ that are released into environment?
6. Which one of the following air pollutants can affect blood stream leading to death?
7. In which unit noise is measured?
8. E-waste contains hazardous substances that are harmful to the environment and human health if not properly treated or disposed off, therefore they must be handled with care. What are the health hazards which can be caused by e-waste?
10. Proper disposal of hazardous toxic waste is essential as exposure to it can cause serious problems to the health. Which is potentially the safest means of disposing of the most toxic wastes: organic solvents, chlorinated hydrocarbons, and oil-base compounds (including PCBs and dioxins)?
11. The contamination or degradation of soil due to the presence of impurities like chemical, xenobiotics, toxic wastes etc. is called as
12. Which of the following has/have shrunk immensely/dried up in the recent part due to human activities?
I. Aral Sea
II. Black Sea
III. Lake Baikal
Select the correct answer using the code given below.
13. Acid rain is caused by the pollution of environment by
14. Fly ash is a pollutive combustion product of burning
15. Kessler syndrome is associated with
16. Consider the following statements.
I. Nuclear fuel is made from naturally occurring radioactive materials, such as uranium, found in rocks.
II. Nuclear fuel produces 50% less greenhouse gases than any non-renewable source of energy.
Which of the statements given above is/are correct?
17. Which of the following is the reason behind the maximum noise pollution?
18. At what decibel instantaneous rupture of membrane happens?
19. With reference to harmful effects of noise pollution, consider the following.
I. Noise pollution results in lack of concentration.
II. It increases the tension in human being.
III. It is helpful in the growth of plants and crops.
IV. Deafness is one of the common harmful effects of noise pollution.
Select the correct statement/s using the codes given below.
20. In the world’s worst nuclear accident in 1986, 31 people died, 129 others suffered acute radiation and many thousands are expected to die prematurely as a result of exposure to radiation released from the stricken plant. Name the site of this mishap.
22. Which of the following form of energy does not have the problem of pollution?
24. The municipal solid waste generated in India is about 40% organic matter. Composting is the best method of disposal of organic solid waste. Where was the country’s first aerobic composting plant set-up in 1992?
25. The ‘pond bloom’ of blue-green algae which causes the death of fishes and cattles produces the toxin of
26. The acidification of oceans is increasing. Why is this phenomenon a cause of concern?
I. The growth and survival of calcareous phytoplankton will be adversely affected.
II. The growth and survival of coral reefs will be adversely affected.
III. The survival of some animals that have phytoplanktonic larvae will be adversely affected.
IV. The cloud seeding and formation of clouds will be adversely affected.
Which of the statements given above is/are correct?
27. Which one of the following statements about air pollution caused by diesel engines is correct?
28. What does e-waste stand for?
29. Which one of the following is not biodegradable?
30. The use of micro-organism metabolism to remove pollutants such as oil spills in the water bodies is known as
31. Which one of the following countries receive the most acid rain?
32. Which of the following is used to clean polluted environment?
33. Which one of the following is a useful biological indicator of sulphur dioxide pollution?
34. With reference to Eutrophication, which of the following statement(s) is/are correct?
I. It decreases dissolved oxygen of water.
II. It is a phenomenon of nutrient enrichment of a water body.
Select the correct answer from the codes given below.
35. Which of the following air pollutants is most dangerous?
36. Colourless gases coming out from motor vehicle and cigarette due to incomplete combustion is
37. Name the metal contained in broken fluorescent bulbs, tube lights and dead batteries which gets transported with common municipal solid waste and can be easily swallowed, inhaled or absorbed through the skin and can cause damage to the kidneys and nervous system.
38. The Environment (Protection) Bill was passed by the Parliament of India in
39. The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?
40. Why ship accidents cause marine pollution?
41. ‘Rally for Valley’ programme in India was organised to highlight the problem of
42. Which one of the following is not a cause of depletion in groundwater?
43. In which year, did the ‘Central Ganga Authority’ establish by the Government of India?
44. The headquarters of International Maritime Organisation is located in
45. Which of the following is not destroyed by bacteria?
46. Which of the following can be found as pollutants in the drinking water in some parts of India?
I. Arsenic
II. Sorbitol
III. Fluoride
IV. Formaldehyde
V. Uranium
Select the correct answer using the code given below.
47. Water pollution of a river is measured by
48. Which of the following is considered to be the optimum concentration of carbon dioxide for natural balance in atmosphere?
49. Consider the following statements.
I. Pollution is release of toxic undesirable material in environment.
II. Major pollution causing agent is man.
III. Sound becomes hazardous noise pollution at level above 80 dB.
IV. Fishes die in water bodies polluted by sewage due to reduction of oxygen.
Which of the statements given above are correct about pollution?
50. The problem of water pollution with arsenic is maximum in