Environmental Issues Class 12 MCQs Questions with Answers

1. Rain is called acid rain, its pH is below:

2. Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of_________

3. Act formulated in 1996 was:

4. The agents that bring undesirable changes in the environment arc called

5. The greenhouse gases are

6.  A river with inflow of domestic sewage rich in organic waste may result__________

7. The Chipko movement was launched for protection of_________

8. BOD in river water_________

9. Common indicator organism of water pollution is:

10. The dB is a standard abbreviation used for the quantitative expression of:

11. Presence of large amount of nutrients in water cause excessive growth of

12.  In an area where DDT had been used extensively, the bird population declined significantly due to_________

13. Acid Rain comes under which type of pollution?

14. Natural air pollutant are:

15. Nutrient enrichment of water bodies causes:

16. The powder of recycled modified plastic is called

17. Global warming can be controlled by__________

18. DDT can cause

19. Which metal inactivates a catalytic converter?

20. Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with: