Environmental Issues Class 12 MCQs Questions with Answers

1. Nutrient enrichment of water bodies causes:

2. DDT can cause

3. The powder of recycled modified plastic is called

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

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

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

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

8. BOD in river water_________

9. Global warming can be controlled by__________

10. The greenhouse gases are

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

12. Common indicator organism of water pollution is:

13. Act formulated in 1996 was:

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

15. The Chipko movement was launched for protection of_________

16. Natural air pollutant are:

17. Which metal inactivates a catalytic converter?

18. Acid Rain comes under which type of pollution?

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

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