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. Bacteria and fungi are:

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

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

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

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

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

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

9. Burning of fossil fuels results in:

10. The main contributors of acid rain are:

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

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

13. It is an essential constituent of protein.

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

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

16. Which of the following greenhouse gases is present in very high quantities?

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

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

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

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