Visible light has a higher frequency than?

The color purple, or equivalently violet

Explanation the end of the visible electromagnetic spectrum, having the highest frequency of any light wave. The reason we see different colors is because of this difference in frequency, where violet light has higher frequency of light waves than blue light.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.