Man and His Environment – Online MCQs – Biology 10th

1. Burning of fossil fuels results in:

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

3. The decomposed dead animals and plants called:

4. It is an essential constituent of protein.

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

6. A kind of spiral-shaped bacteria, spirochaete, living between our teeth to obtain food is a good example of:

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

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

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

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

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

12. The main cause of acid rain is:

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

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

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

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

18. Competition between the members of different species is:

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

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