Question

conventional sources of energy have been used for a long time​

Answer 1

Answer:

The sources which have been in use since a long time are called as conventional sources of energy. Petroleum, natural gas,coal, hydel energy, wind energy, nuclear energy are examples of conventional sources of energy. They are also called non-renewable sources of energy and are mainly fossil fuels, except hydel energy.

Explanation:

Answer 2

Explanation:

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