Here's why:

* Evaporation is the process where a liquid changes into a gas. The sun's heat provides the energy needed for water molecules to break free from the liquid state and become water vapor in the air.

Other related terms include:

* Solar radiation: The energy from the sun that drives evaporation.

* Vaporization: A general term for the process of a liquid turning into a gas.

* Transpiration: The process of water moving through a plant and evaporating from its leaves.

Let me know if you have any other questions!