NEET BIOLOGY

Detailed explanation-1: -Desertification is the degradation process by which a fertile land changes itself into a desert by losing its flora and fauna, this can be caused by drought, deforestation, climate change, human activities or improper agriculture.

Detailed explanation-2: -Human activities that contribute to desertification include the expansion and intensive use of agricultural lands, poor irrigation practices, deforestation, and overgrazing.

Detailed explanation-3: -Desertification is the process by which vegetation in drylands i.e. arid and semi-arid lands, such as grasslands or shrublands, decreases and eventually disappears.

Detailed explanation-4: -Wind erosion occurs easily and frequently on the loose, surface layer with limited or no vegetation coverage. Wind erosion causes severe deflation through loss of top soil and sand cover on grazing and cultivated land.

Detailed explanation-5: -Clearly, desertification will affect all soil functions, with greatest impact being on biomass and food production, biological habitat, and environmental services. When soils are degraded, they lose their capacity to capture and store water, nutrients and carbon and to support microbiological processes.