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 group of organisms that belongs to the same species live in a particular area called:

3. The elements in the ecosystem recycle through organisms with the environment is called:

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

5. Graphic presentation of members of the population in an area at different trophic levels is called

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

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

8. One of the important constituent of protein and DNA.

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

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

11. Competition between the members of different species is:

12. Process of converting nitrogenous compound into free nitrogen called:

13. Bacteria and fungi are:

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

15. All biogeochemical cycles are closely interlinked with:

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

17. It is an essential constituent of protein.

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

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

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