What countries are in the "Sub-Saharan Africa" ??region and

Sub-Saharan Africa refers to Africa south of the Sahara Desert, with a total area of ??about 2180 square meters, including more than 40 countries (Egypt, Libya, Algeria, Morocco, and Western Sahara in North Africa are Arab countries, so These countries are grouped together with West Asia). Sub-Saharan Africa is the vast majority of black people and is called "Black Africa". Internationally, North Africa is often regarded as part of the Arab world, so Sub-Saharan Africa is regarded as the real Africa. Sub-Saharan Africa is divided into four parts based on geographical location: West Africa, Central Africa, Eastern Africa, and Southern Africa.

West Africa is located to the west of Lake Chad and has 16 countries. It is the most populous geographical region in Africa. Such as Nigeria.

Central Africa includes 9 countries from Chad to Angola. The equator runs through the center.

Eastern Africa includes 9 countries from Ethiopia to Tanzania, and the island country of Seychelles. Located on the East African Plateau and Ethiopian Plateau.

Southern Africa includes 13 countries south of Zambia. Representing the country South Africa.