WORLD RELIGIONS

Detailed explanation-1: -The Sahara is bordered in the west by the Atlantic Ocean, in the north by the Atlas Mountains and Mediterranean Sea, in the east by the Red Sea, and in the south by the Sahel-a semiarid region that forms a transitional zone between the Sahara to the north and the belt of humid savannas to the south.

Detailed explanation-2: -It is a transitional ecoregion of semi-arid grasslands, savannas, steppes, and thorn shrublands lying between the wooded Sudanian savanna to the south and the Sahara to the north.

Detailed explanation-3: -It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains.