GENERAL KNOWLEDGE

Detailed explanation-1: -The Sahel is a narrow band of semi-arid land that forms a transition zone between the Sahara to the north and the savannas to the south. It is made up of flat, barren plains that stretch roughly 5, 400 kilometers (3, 300 miles) across Africa, from Senegal to Sudan.

Detailed explanation-2: -Sub-Saharan Africa is, geographically, the area and regions of the continent of Africa that lie south of the Sahara. These include Central Africa, East Africa, Southern Africa, and West Africa.

Detailed explanation-3: -In addition to an array of landforms from rift valleys to mountains to deserts, Sub-Saharan Africa contains a wide variety of climate zones and precipitation patterns. In general, the continent is relatively hot with temperate climates in the higher elevations.