Solar radiation refers to the electromagnetic radiation emitted by the Sun. The energy carried by the sun’s radioactive rays are dissipated into the water vapour and gases in the earth’s atmosphere and is significantly reduced before striking the earth. The Sun is weaker in Northern or Southern locations (far from the equator) because the Sun’s rays strike the earth at a shallow angle that can be more easily deflected by the atmosphere. The solar radiation simply bounces
off the earth’s atmosphere and is deflected back into space before it can reach the earth’s surface.
