Environmental Issues Class 12 MCQs Questions with Answers

1. Which metal inactivates a catalytic converter?

2. The Chipko movement was launched for protection of_________

3. Acid Rain comes under which type of pollution?

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

5. The greenhouse gases are

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

7. Global warming can be controlled by__________

8. Natural air pollutant are:

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

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

11. Act formulated in 1996 was:

12. Nutrient enrichment of water bodies causes:

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

14. The powder of recycled modified plastic is called

15. BOD in river water_________

16. DDT can cause

17. Common indicator organism of water pollution is:

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

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

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