Question

Give scientific reasons:
Hydroelectric energy, solar energy, and wind energy are called renewable energies.

Hint:

Renewable energies like hydro, solar, and wind are sustainable and have little to no environmental impact compared to fossil fuels.

Answer 1

1. Hydroelectric energy: Hydroelectric energy is derived from flowing water, which is constantly replenished through natural water cycles like rainfall and melting snow. Therefore, it is considered renewable.
   
2. Solar energy: Solar energy comes from the sun, which is a continuous and inexhaustible source of energy. As the sun will continue to shine for billions of years, solar energy is a renewable resource.
   
3. Wind energy: Wind energy is harnessed from the wind, which is powered by the sun's heat and the Earth's rotation. Since wind is constantly generated, it is also considered renewable.