1.

Distinguish between renewable and non-renewable sources of energy. Also give an example of each of these sources.

Answer»
Renewable Source of Energy Non-renewable Source of Energy
(i) They are constantly supplied by nature and are inexhaustible.(i) They do not renew or regenerate and are exhaustible.
(ii) Low cost of operation.(ii) High cost of operation.
(iii) They produce little or no pollutants. Thus minimum impact on environment, e.g. wind energy, solar energy. (iii) They produce a lot of pollutants, e.g. coal, petroleum, etc. 



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