14000+ MCQs Environment & Ecology(Pollution)
Total Questions:- 50
Time:- 30 Minutes
MCQ Pattern
Date:- 17/03/2026
1. What are the causes of soil pollution?
2. Which Indian river is called ‘biological desert’?
3. Fly ash is a pollutive combustion product of burning
4. Buddha Nullah has been the main source of pollution of which among the following rivers?
5. 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.
6. Which one of the following is not a cause of depletion in groundwater?
7. The highest chemical pollution is caused by the industrial effluents of
8. Atmospheric ozone layer which protects us from UV-B and C is getting depleted most by addition of
9. Consider the following statements and choose the correct answer from the codes given below.
I. Soil erosion is the destruction of the upper layer of the soil by natural factors.
II. General erosion is one when there is 25% less erosion of the land soil.
III. Sheet erosion is caused when the upper fertile layer of the land is eroded by air or water.
10. Green Muffler is related to
11. Which one among the following groups of items contain only biodegradable items?
12. 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?
13. Which megacity of India generates the largest solid waste per capacity annually?
14. Which of the following is not destroyed by bacteria?
15. Which one of the following processes takes place in lakes during eutrophication?
17. Which of the following pollutant is not contained in the vehicular exhaust emissions?
18. 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.
19. Consider the following statements.
I. Asian Brown Cloud is a layer of air pollution that covers parts of Northern Indian Ocean, India and Pakistan.
II. Asian Brown Cloud is a permanent phenomenon.
Which among the above statements is/are correct?
20. Which of the following statements is not true?
21. Which of the following is the reason behind the maximum noise pollution?
22. Assertion (A): During winter, air pollution in Delhi reaches to the maximum level. Reason (R): Combustion process in motor vehicles increases during winter.
23. With reference to ‘Indian Ocean Rim Association for Regional Cooperation’ (IOR-ARC) consider the following statements.
I. It was established very recently in response to incidents of piracy and accidents of oil spills.
II. It is an alliance meant for maritime security only.
Which of the statements given above is/are correct?
24. As per the Solid Waste Management Rules, 2016 in India, which of the following statements is correct?
25. Indiscriminate use of fertilisers have led to
26. The chemicals released due to unsustainable agricultural practices and cause soil pollution are
27. In the year 2011 ‘Oilzapper’ was in the news. What is it?
28. Which one of the following air pollutants can affect blood stream leading to death?
29. Which one of the following statements about air pollution caused by diesel engines is correct?
30. Which of the following represents the decibel level of rustling of tree leaves in normal circumstances?
31. BOD is maximum in the Ganga river between
32. 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.
33. Biological Oxygen Demand (BOD) is a standard criterion for
34. What is negative soil pollution?
35. Incinerators are used for which of the following?
36. Which of the following is considered to be the optimum concentration of carbon dioxide for natural balance in atmosphere?
37. The Environment (Protection) Bill was passed by the Parliament of India in
38. Which of the following is/are the possible consequences of heavy sand mining in riverbeds?
I. Decreased Salinity in the river.
II. Pollution of Groundwater.
III. Lowering of the water table.
Select the correct answer using the codes given below.
40. Consider the following statements.
I. Space debris are the artificial material that is orbiting Earth but is no longer functional.
II. Space Debris are also called as space junk.
III. There is binding International Legal Rule, which prohibits the wanton creation of space debris.
IV. In 1967, Outer Space Treaty bars states party to the treaty from placing weapons of mass destruction in Earth orbit.
Select the correct answer using the code below.
41. Which of the following countries suffer from the acid rains?
I. Canada
II. France
III. Norway
IV. Germany
Select the correct answer using the code below.
42. 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.
43. Which of the following is produced during the formation of photochemical smog?
44. Consider the following statements
I. Coal ash contains arsenic, lead and mercury.
II. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.
III. High ash content is observed in Indian coal.
Which of the statements given above is/are correct?
45. In which year, did the ‘Central Ganga Authority’ establish by the Government of India?
46. Water pollution of a river is measured by
47. Why ship accidents cause marine pollution?
48. Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?
I. Beryllium
II. Cadmium
III. Chromium
IV. Heptachlor
V. Mercury
VI. Lead
VII. Plutonium
Select the correct answer using the codes given below.
49. Which of the following form of energy does not have the problem of pollution?
50. The ‘pond bloom’ of blue-green algae which causes the death of fishes and cattles produces the toxin of