Accommodation of the population in Africa.

Consider a country from North to South:
On the northwestern coast of the mainland in cities, the population reaches 10 million people. On the north-east coast, most of the population is located along the banks of the Nile. Almost the entire territory of North Africa is occupied by the Sahara Desert, the population there is typically small and represented mainly by nomadic peoples.
Central Africa is mostly populated quite densely, more population is found in large cities.
South Africa is inhabited as well, except for the territory of the Kalahari Desert.