Question

"In comparison to coal and oil, hydroelectricity is a key source of energy." Comment on this statement.
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Answer 1

1. Coal is a type of fossil fuel where trapped solar energy in dead and decaying plant matter has been compressed over a period of time to give its current form. It is burned to provide the necessary energy which is converted further into thermal power, fuel and various other raw materials for industries.

2. ‘Oil’ or petroleum is a naturally occurring inflammable liquid that is primarily composed of hydrocarbons. It has high economic importance as it is used for transportation, generation of electricity, power industries etc.

3. Hydroelectricity is the electricity generated from hydropower which is the power generated by utilizing the energy potential of running water.

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