When we call a water body is polluted?

The internal restoring force per unit area of the body is called

Why do we call as plants producers on land?

Construct two slogans each on air, water and soil pollution.

A body of volume 50 cm^3 is immersed completely in water then the mass of water displaced by the body will be

The gravitational force exerted by the earth on a body is called

Give two examples of each of water, soil and air pollution from your residential area.

Answer the following : What are the effects of water pollution on the ecosystem ?

Answer the following : What are the effects of water pollution on human beings ?