Explain how solar radiation affects the water cycle.

Solar radiation is the set of electromagnetic radiation emitted by the Sun. The Sun is a star that is located at an average temperature of 5778 K (5505 ° Celsius) inside which a series of nuclear fusion reactions take place that produce a loss of mass that is transformed into energy. This energy released from the Sun is transmitted to the outside through solar radiation. The Sun behaves practically like a black body, which emits energy following Planck's law at the aforementioned temperature. Solar radiation is distributed from infrared to ultraviolet. Not all radiation reaches the Earth's surface, because shorter ultraviolet waves are absorbed by gases in the atmosphere. The magnitude that measures the solar radiation reaching the Earth is the irradiance, which measures the power that per unit of surface reaches the Earth. Its unit is W / m².