NEET BIOLOGY

Detailed explanation-1: -But since the late 1960s, the Sahel has endured an extensive and severe drought. Desertification occurs when land surfaces are transformed by human activities, including overgrazing, deforestation, surface land mining, and poor irrigation techniques, during a natural time of drought.

Detailed explanation-2: -Desertification is a problem that those living in the Sahel Region have faced for many years. Desertification is when areas of viable land for farming dry up and are absorbed or transformed into a more desert-like climate. The Sahel Region spans 10 African countries including Burkina Faso, Chad and Cameroon.

Detailed explanation-3: -Once the soil is depleted of moisture and nutrients, it is susceptible to being blown away by the wind before it can recover. Similarly, herders in the Sahel have increased the size of their herds so that they can sell their animals. The result is many more animals than usual grazing on a limited amount of land.

Detailed explanation-4: -The Sahel region of Africa is facing unprecedented humanitarian needs as a result of armed conflict, poverty, climate change, food insecurity and political instability.

Detailed explanation-5: -Fire is a primary cause of desertification in the Sahel region of North Africa, where the degradation of drylands is especially pronounced.