What effect does a decrease in temperature have on the overall rate of a chemicals reaction?

answer:

the energy decreases and the particles slow down

explanation:

think of it as a water, when you freeze it (decrease temperature) all the particles move together and form an ice cube, but when you increase the temperature it turns into water and the particles move slower

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.