Question

sun: solar energy::water:​

Answer 1

Explanation:

water energy

Hydroelectric energy, also called hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motion—such as water flowing over a waterfall—to generate electricity. People have used this force for millennia.

Answer 2

Answer:

sun=it is the main source of light, solar energy =it is the energy which is received by sun water = a substance composed of the elements hydrogen and oxygen