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

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

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

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

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

5. The main contributors of acid rain are:

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

7. Acid rain causes damage to:

8. They are the primary source of energy for other organisms.

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

10. The main cause of acid rain is:

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

12. The decomposed dead animals and plants called:

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

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

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

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

17. All biogeochemical cycles are closely interlinked with:

18. Bacteria and fungi are:

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

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