Deserts can be formed by nature in a variety of ways but the deserts of the southwest were formed by warm moist air coming from the Pacific Ocean and other large bodies in the far west. The air rises over the mountains losing moisture as it goes. As the air reaches the top it meets dry winds blowing from Mexico the previously moist air is now dry and very warm. This air combined with very warm temperatures that exist in the southwest help to create the desert conditions that exist there.
NATIVE AMERICAN RHYMES
