Online MCQs Test – Man and His Environment – Biology 10th

1. All the life on the earth is based on:

2. Which of the following greenhouse gases is present in very high quantities?

3. Enzyme activities of metabolic reactions are also altered with the changes in:

4. The association between two different types of organisms which get benefit to each other, cannot live without each other is called:

5. Presentation of a number of individuals or amount of biomass or energy in various trophic levels from lower to a higher level is:

6. All biogeochemical cycles are closely interlinked with:

7. A bird that gets its energy and food when it eats grasshopper or caterpillar is:

8. It is an essential constituent of protein.

9. The transfer of food material from producers through some organisms with repeated eating and being eaten is called:

10. Acid rain causes damage to:

11. In a given ecosystem various food chains are linked together and interact with each other to form a complete network called:

12. The life-sustaining envelop of the earth is:

13. It is an association between the two organisms of different species which live together.

14. An area where community interacts with non-living environment is called:

15. Competition between the members of different species is:

16. Growth of algae with very high rate due to increase in phosphorous and nitrogen-containing compounds called:

17. Main cause of depletion of the ozone layer is the CFC used as the propellant in:

18. The decomposed dead animals and plants called:

19. Any biological region recognized by its climate or vegetation is called:

20. The cold war between the organisms of a community occupying the same habitat is called: