Generally Speaking, Deserts are Located in Places Where Air Masses

Question

Generally speaking, deserts are located in places where air masses are usually
A) tropical.
B) humid.
C) rising.
D) descending.
E) expanding.

Accepted Answer

Deserts are located in places where air masses are usually descending. Descending air is warming and can carry more moisture than ascending air, resulting in very low humidity and dry conditions.