Desertification is a process whereby land degradation in arid, semi-arid, and dry sub humid areas results from climatic variations and human activites.

A. True

B. False

TRUE

Explanation:

Desertification is usually defined as the process by which a productive land is transformed into a desert. This process occurs mainly in the arid, semi-arid as well as in the dry sub-humid areas, where there occurs less amount of rainfall and presence of less or no moisture content in the air.

It is caused by various processes, such as-

Cutting down of trees, in order to make urban areas. Lack of rainfall. Overgrazing of animals. Low level of groundwater. Forest-fire can also lead to desertification, as the trees are burned by this process. Soil erosion also is a major cause. It also occurs due to changes that occur in the climate of the area.

Thus, the above-given statement is true.