Give reasons:It is necessary to use non-exhaustible sources of energy.

1.	Give reasons:It is necessary to use non-exhaustible sources of energy.
Answer» 1. Natural fuels like coal, natural gas or mineral oil can be used only once. 2. They get consumed when we use them. 3. They also cause air pollution. 4. It takes lakhs of years for these resources to be formed in nature. 5. Therefore it is necessary to use non exhaustible sources of energy.

Answer»

1. Natural fuels like coal, natural gas or mineral oil can be used only once.

2. They get consumed when we use them.

3. They also cause air pollution.

4. It takes lakhs of years for these resources to be formed in nature.

5. Therefore it is necessary to use non exhaustible sources of energy.

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