Question

A cheap, conventional, commercial and inexhaustible source of energy is:

• A. Hydropower
• B. Solar energy
• C. Wind energy
• D. Thermal energy

Answer 1

The correct option is A

Hydropower

1. Hydropower is the generation of power from energy utilized during fast-running water in rivers and dams .The main application of hydropower is to generate electricity .
2. The flowing water from dam, rivers creates energy that can be captured and turned into electricity.
3. Solar energy, wind energy ,thermal energy are not cheap, production is also low and they are not inexhaustible.

Hence, the correct option is (A).