Environmental Issues Class 12 MCQs Questions with Answers

1. The Chipko movement was launched for protection of_________

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

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

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

5. Act formulated in 1996 was:

6. Common indicator organism of water pollution is:

7. The powder of recycled modified plastic is called

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

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

10. BOD in river water_________

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

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

13. Which metal inactivates a catalytic converter?

14. Nutrient enrichment of water bodies causes:

15. The greenhouse gases are

16. Natural air pollutant are:

17. Acid Rain comes under which type of pollution?

18. Global warming can be controlled by__________

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

20. DDT can cause