NEET BIOLOGY

Detailed explanation-1: -The Sahel region, which stretches between the Sahara and the Sudanian savanna and crosses multiple countries, is one of the driest and most vulnerable zones on the planet.

Detailed explanation-2: -Two thirds of Africa is classified as drylands, of which 319 million hectares has been estimated to be highly vulnerable to desertification. These areas are concentrated in Sahelian region, Horn of Africa and Kalahari in the south.

Detailed explanation-3: -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.

Detailed explanation-4: -Bordering the Sahara Desert and the Savannas, the Sahel region in Africa has been affected by devastating droughts over the last number of years. It has become a desert, making it more difficult to inhabit and produce anything on the land. For around 8 months of the year, the weather is dry.

Detailed explanation-5: -The greatest impact of desertification is in Africa, as two thirds of the continent comprises desert or drylands. South Africa is losing about 300 to 400 million tons of topsoil every year. Areas such as the Northern Cape are especially prone to desertification.