Answer:
Desertification refers to the continuing degradation of arid ecosystems by a wide variety of climates and human activities. It occurs on every continent (except Antarctica) and affects the lives of millions of people, including the vast majority of the poor in arid regions.
Human activities that contribute to desertification include the expansion and exploitation of agricultural lands, poor irrigation practices, deforestation and overgrazing. This unstable earth exerts a tremendous pressure on the earth by converting its chemicals and soils.
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