Natural Resources-Sample Questions

1.   What is humus?

2.   Name two elemental form of carbon.

3.   What is bad ozone and good ozone?

4.   What are the diseases caused by air pollution?

5.   How can lichen help in indicating the pollutants in air?

6.   How winds are caused and what decides the breeze to be gentle, strong wind or terrible storm.

7.   What is air pollution? How it is caused? Give any two harmful effects.

8.   Explain water cycle with diagram.

9.   How does oxygen occur in nature. Explain oxygen-cycle in nature.

10.   Give existence of carbon.

11.   Explain nitrogen cycle in detail and define all the terms involved in it.

12.   Explain biosphere.