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

1. The group of populations that lives in a particular area of habitat and interacts with each other is called:

2. The area where an organism lives is called its:

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

4. The decomposed dead animals and plants called:

5. The main cause of acid rain is:

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

7. It is an essential constituent of protein.

8. Respiration consumes it for the combustion of food for release of energy.

9. Conversion of atmospheric free nitrogen gas into nitrates called:

10. Process where the nitrogenous compound of living organism convert into nitrates is called:

11. The growth and life processes of living organisms require about:

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

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

14. Burning of fossil fuels results in:

15. The term describes how the ecosystem is organized in a state of stability where species exist with other species and the environment.

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

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

18. The amount of solid waste or concentration of gases other than oxygen increase in the atmosphere is called:

19. All biogeochemical cycles are closely interlinked with:

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