question_answer

"Hydel power" is more important source of energy than thermal power? Discuss this fact with four examples.                                                                                                                                            [Delhi 2002]

Answer:

Hydel power is a renewable source of energy generated from falling water. Whereas coal and petroleum, natural gas are non-renewable. Hydel power is pollution free source of power while thermal power is not. Hydel power can be transmitted through wires over long distances and it is the cheapest source of power.