14000+ MCQs Environment & Ecology(Pollution)
Total Questions:- 50
Time:- 30 Minutes
MCQ Pattern
Date:- 06/05/2026
1. Which one of the following is not related to air pollution?
2. Asian Brown Cloud, 2002 was mainly spread over
3. 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.
4. Consider the following statements.
Assertion (A): Soil pollution is more dangerous as compared to industrial pollution.
Reason (R): Fertiliser and Pesticide enter into food cycle. Choose the correct answer using the code below.
5. Water pollution of a river is measured by
6. If National Water Mission is properly and completely implemented, how will it impact the country?
I. Part of the water needs of urban areas will be met through recycling of waste water.
II. The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow for the use of Ocean water.
III. All the rivers of Himalayan origin will be linked to the rivers of peninsular India.
IV. The expenses incurred by farmers for digging bore-wells and for installing motors and pump sets to draw ground water will be completely reimbursed by the Government.
Select the correct answer using the codes given below.
8. What is a particulate matter?
9. Assertion (A): During winter, air pollution in Delhi reaches to the maximum level. Reason (R): Combustion process in motor vehicles increases during winter.
10. Which of the following is the reason behind the maximum noise pollution?
11. As per the Solid Waste Management Rules, 2016 in India, which of the following statements is correct?
12. Which of the following air pollutants get dissolved in the blood more rapidly than oxygen?
13. There is a concern over the increase in harmful algal blooms in the sea-water of India. What could be the causative factors for this phenomenon?
I. Discharge of nutrients from the estuaries.
II. Run-off from the land during the monsoon.
III. Upwelling in the seas.
Select the correct answer using the code below.
14. Buddha Nullah has been the main source of pollution of which among the following rivers?
15. A water body having high BOD indicates that its water is
16. Under the National Air Quality Monitoring Programme (NAMP) which of the following air pollutants are regularly monitored at all locations?
I. Oxides of Nitrogen
II. Suspended Particulate Matter
III. Respirable Suspended Particulate Matter (RSPM)
IV. Sulphur Dioxide
17. DDT is a major contributor to soil pollution because
18. Consider the following statements.
I. Agricultural soils release nitrogen oxides into environment.
II. Cattle release ammonia into environment.
III. Poultry industry releases reactive nitrogen compounds into the environment.
Which of the following statements given above is/are correct?
19. Acid rain is caused by the pollution of environment by
20. Which of the following statements is not true?
21. 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.
22. Lichens are the best indicator of
23. Which one among the following groups of items contain only biodegradable items?
24. Which of the following, when dissolved in rainwater turns water acidic (acid rain) ?
25. With reference to ‘fly ash’ produced by the power plants using as fuel, which of the following statements is/are correct?
I. Fly ash can be used in the production of bricks for building construction.
II. Fly ash can be used as a replacement for some of the Portland cement contents of concrete.
III. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements.
Select the correct answer using the codes given below.
26. In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon foot print?
I. Copper slag
II. Cold mix asphalt technology
III. Geotextiles
IV. Hot mix asphalt technology
V. Portland cement
Select the correct answer using the codes given below.
27. Biological Oxygen Demand (BOD) is a standard criterion for
28. 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?
29. Incinerators are used for which of the following?
30. Consider the following statements. The Environment Protection Act, 1986 empowers the Government of India to
I. state the requirement of public participation in the process of environmental protection and the procedure and the manner in which it is sought.
II. lay down the standards for emission or discharge of environmental pollutants from various sources.
Which of the following statements is/are correct?
31. Which one of the following statements about air pollution caused by diesel engines is correct?
32. Kessler syndrome is associated with
33. 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)?
35. The ‘pond bloom’ of blue-green algae which causes the death of fishes and cattles produces the toxin of
36. Green Muffler is related to
37. Which one of the following processes takes place in lakes during eutrophication?
39. Why ship accidents cause marine pollution?
40. The problem of water pollution with arsenic is maximum in
41. Which one of the following is not an instrumental device to check air pollution?
42. Rain water collected after 30 to 40 minutes of raining is not suitable for drinking because it
44. Which of the following is the major cause of pollution?
45. The use of micro-organism metabolism to remove pollutants such as oil spills in the water bodies is known as
46. Which of the following is not a water pollutant?
47. “Knock-Knee Syndrome” is caused by the pollution of
48. The process of vitrification used for disposing radioactive waste refers to which of the following processes?
49. Consider the following statements.
I. The SI unit for the measurement of noise is Pascal.
II. The noise above 80 dB level becomes physically uncomfortable.
Select the correct answer using the codes below.
50. Which one of the following countries receive the most acid rain?