Man and His Environment – Online MCQs – Biology 10th

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

2. Acid rain causes damage to:

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

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

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

6. The decomposed dead animals and plants called:

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

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

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

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

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

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

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

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

15. It is an essential constituent of protein.

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

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

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

19. The main cause of acid rain is:

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