Environmental Issues Class 12 MCQs Questions with Answers

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

2. The Chipko movement was launched for protection of_________

3. Natural air pollutant are:

4. Global warming can be controlled by__________

5. The powder of recycled modified plastic is called

6. The greenhouse gases are

7. DDT can cause

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

9. Act formulated in 1996 was:

10. Which metal inactivates a catalytic converter?

11. BOD in river water_________

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

13. Nutrient enrichment of water bodies causes:

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

15. Common indicator organism of water pollution is:

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

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

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

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

20. Acid Rain comes under which type of pollution?