Question

Why is there a need to harness non-conventional sources of energy? Give two main reasons.

Answer 1

(a)They are eco-friendly
(b)They are cheaper than conventional sources of energy.
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Answer 2

Answer

1. The demand for energy is increasing day by day to meet out the basic requirement of our changed life-styles, growing use of machines and industrialisation in order to improve our living standards. So there is a need to harness non-conventional sources of energy.
2. The sources of energy which are available are mainly fossil fuels which are non-renewable sources of energy and are limited.