Principle objective of this article is to Analysis Distribution and Causes of Deserts. Hot air rises at the equator, the spot that the land receives the greatest quantity of the sun’s radiation. The vast majority of world’s deserts are based near 30 degrees n . latitude and 30 levels south latitude, where the particular heated equatorial air will begin to descend. The climbing down air is dense as well as begins to warm once again, evaporating large amounts of water from the land surface. The resulting climate can be quite dry.