Does contaminated mean 'polluted'?
Contamination means presence of unwanted matters in a material, or environment. Both ‘contaminated’ and ‘polluted’ have almost same meaning.
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?