Answer:
The answer is Radiation.
Step-by-step explanation:
The phenomenon of radiation is the propagation of energy in the form of electromagnetic waves or subatomic particles through vacuum or a material medium. Solar radiation is the set of electromagnetic radiation emitted by the Sun and which reach the earth, although not all radiation reaches the Earth's surface, because the shortest ultraviolet waves are absorbed by the gases of the atmosphere. The magnitude that measures the solar radiation that reaches the Earth is the irradiance, which measures the power that per unit of surface reaches the Earth.