Africa is home to the Sahara desert, the world's largest desert. The Sahara desert covers more than 9 million square kilometers. It stretches from the Red Sea in the east to the Mediterranean in the north to the Atlantic Ocean in the west, including 10 different countries.
Nigeria, Chad, Libya, Mali, Morocco, Mauritania, Egypt, Tunisia, Algeria, and Sudan.
The sand dunes characteristic of desert landscapes is the primary reason for the region's notoriety. The sand dunes can rise to heights of up to 183 meters. On the other hand, they only take up around 15 percent of the desert.
How did the Sahara Desert evolve into the severe, arid environment it is now, given that it was once a tropical area? Stay tuned to find out.

Since ancient times, the climate has been characterized by alternating periods of wet and dry weather. These variations are brought on by minor wiggles in the tilt of the Earth's orbital axis, which, in turn, alters the angle at which solar radiation enters the atmosphere and causes the alterations mentioned earlier. During the West African monsoon season, there has historically been an increase in the amount of energy coming in from the sun at various points in the course of Earth's history. North Africa receives a significant increase in precipitation during these seasons, which are referred to as African Humid Periods. When it rains more, the region sees an increase in the number of rivers, lakes, and other forms of vegetation.

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