Question

Why is energy of water flowing in a river considered to be an indirect for of solar energy?

Answer 1

Water flowing in the river is because of hydrological cycle.
Hydro cycle occurs only because of solar energy which leads to evaporation.

Therefore the energy flowing through river is indirect form of solar energy.

Answer 2

Answer:

When solar energy falls on the water surface then evaporation of water from water surfaces like oceans, rivers and other water bodies takes place to form clouds. The clouds are then taken to distant places by air currents, and ultimately water comes back to the surface in the form of rain and snow. During evaporation, a part of solar energy gets converted into potential energy of water molecules. The potential energy of water molecules gets converted into kinetic energy during rain and snowfall.

Thus, energy of water flowing in a river is considered to be an indirect form of solar energy

Explanation: