(a) What is meant by water pollution? What are the different ways in which water gets polluted?
(b) State the harmful effects of water pollution.
Answer in brief :
(a) Name the components of the environment.
(b) For which purposes is water used on a large scale?
(c) How does the water in a reservoir get contaminated?
(d) How does air get polluted?
(e) Explain the effects of a polluted environment.
(f) How was garbage of a village or town disposed of in the past?