SSC Ecology and Environment Set- 6
Total Questions:- 50
Time:- 30 Minutes
TCS Pattern MCQs
Date:- 15/03/2026
1. The waste management technique that involves the use of micro-organisms to remove or neutralize pollutants from contaminated site is called
2. Which of the following is usually not an air–pollutant?
3. With respect to humans, why is carbon monoxide a pollutant?
4. The most serious air pollutant causing health hazard is
5. Fine solid particles or liquid droplets suspended in air are called ………
6. What is a good way to measure the population density of fishes found in lakes?
7. Spraying of DDT on crops causes pollution of……….
8. Which of the following is also known as a common water Hyacinth?
9. Automobile exhaust leads to a poisonous pollutant
10. What is the pH of rain water during acid rain?
11. The accumulation of non-degradable chemicals progressively at each trophic level is called.....
13. The Great Smog of 1952 was a severe air-pollution event which affected………
14. Bio-magnification is well established for which of the following pollutants?
15. What purpose does the ultravoilet (UV) treatment of water serve?
16. Which of the following is used as a bioindicator of air pollution?
17. Oil spills is seen in which ecosystem?
18. Biodegradable wastes can usually be converted into useful substance with the help of-
19. Acid rain is caused due to pollution of atmosphere by
20. Arsenic problem in India is primarily due to
21. Which among the following helps in monitoring air pollution?
22. Which of the following is NOT a particulate pollutant?
23. Which type of water plants scientifically named as Eichhornia crassipes, have become the world's most problematic aquatic weed?
24. Iron and Manganese present as pollutants in water cannot be removed by ............
25. Substances considered to be biodegradable:
26. Which of the following is the best solution to get rid of non-biodegradable wastes?
27. Which is used as an Air pollution indicator?
28. ...........percent of Delhites are suffering from Asthma and Rhinitis.
29. Which among the following is a non-biodegradable waste?
31. Sulphur dioxide pollution is indicated by an excessive growth of which of the following?
32. During which of the following operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum?
33. Which of the following gases emitted from automobile exhaust is poisonous?
34. Which words combine to form 'smog', a form of air pollution?
35. The largest source of pollution in the world is
36. Which of the following is responsible for turning Taj Mahal yellow?
37. Which of the following is the treatment of water pollution?
38. Which of the following fuels causes minimum environmental pollution?
39. While testing pollution in water a high coliform count indicates high levels of .............
40. ..........is a byproduct of sewage treatment and can be decomposed to produce bio-gas
41. Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?
43. Which of the following is the process of the natural aging of a lake by biological enrichment of its water?
44. Which of the following produces the most solid waste?
45. Which of the following gases is produced due to incomplete combustion of fuel?
46. Sullage Water is------------
47. Why Taj Mahal is suffering from “Marble Cancer”?
48. Excessive richness of nutrients in a lake or other body of water is called……….
49. The least preferred technique in the disposal of Municipal Solid Waste is :
50. Why is Carbon Monoxide a pollutant?
