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

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There is a need to harness non-conventional sources of energy due of the following reasons
(i) The energy demands are increasing repidly because of population explosion and our efforts to improve the quality of the life by adopting faster means of transportation, rapid industrialisation and extensive use of energy-fed appliances.
(ii) The sources of energy which are available are mainly fossil fuels which are non-renewable sources of energy and are limited. It will get exhausted after a time bein. So, we need to harness non-conventional sources of energy.

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