SSC Ecology and Environment Set- 6
Total Questions:- 50
Time:- 30 Minutes
TCS Pattern MCQs
Date:- 28/10/2026
1. Why Taj Mahal is suffering from “Marble Cancer”?
3. Which is used as an Air pollution indicator?
5. Substances considered to be biodegradable:
6. Which of the following gases is produced due to incomplete combustion of fuel?
7. With respect to humans, why is carbon monoxide a pollutant?
8. The Great Smog of 1952 was a severe air-pollution event which affected………
10. Why is Carbon Monoxide a pollutant?
11. Which of the following is usually not an air–pollutant?
12. Sulphur dioxide pollution is indicated by an excessive growth of which of the following?
13. The accumulation of non-degradable chemicals progressively at each trophic level is called.....
14. Automobile exhaust leads to a poisonous pollutant
15. Which of the following is used as a bioindicator of air pollution?
16. Oil spills is seen in which ecosystem?
17. Spraying of DDT on crops causes pollution of……….
18. Which of the following is the process of the natural aging of a lake by biological enrichment of its water?
19. Excessive richness of nutrients in a lake or other body of water is called……….
20. Which of the following is the best solution to get rid of non-biodegradable wastes?
21. The most serious air pollutant causing health hazard is
22. Arsenic problem in India is primarily due to
23. Acid rain is caused due to pollution of atmosphere by
24. ...........percent of Delhites are suffering from Asthma and Rhinitis.
25. During which of the following operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum?
26. What is a good way to measure the population density of fishes found in lakes?
27. The largest source of pollution in the world is
28. Iron and Manganese present as pollutants in water cannot be removed by ............
29. Sullage Water is------------
30. Which type of water plants scientifically named as Eichhornia crassipes, have become the world's most problematic aquatic weed?
31. Which of the following produces the most solid waste?
32. Which of the following is NOT a particulate pollutant?
33. The least preferred technique in the disposal of Municipal Solid Waste is :
34. What purpose does the ultravoilet (UV) treatment of water serve?
35. Which of the following fuels causes minimum environmental pollution?
36. The waste management technique that involves the use of micro-organisms to remove or neutralize pollutants from contaminated site is called
37. Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?
38. ..........is a byproduct of sewage treatment and can be decomposed to produce bio-gas
39. Which among the following is a non-biodegradable waste?
40. Which words combine to form 'smog', a form of air pollution?
41. Biodegradable wastes can usually be converted into useful substance with the help of-
42. What is the pH of rain water during acid rain?
43. Fine solid particles or liquid droplets suspended in air are called ………
44. Which of the following is the treatment of water pollution?
45. While testing pollution in water a high coliform count indicates high levels of .............
46. Which of the following gases emitted from automobile exhaust is poisonous?
47. Bio-magnification is well established for which of the following pollutants?
48. Which of the following is also known as a common water Hyacinth?
49. Which among the following helps in monitoring air pollution?
50. Which of the following is responsible for turning Taj Mahal yellow?
