Rift - long deep valley formed by the movement of Earth's crust, Sub Saharan Africa - The plains of Africa south of the Sahara, Niger river - A river that helped people sittle down in West Africa, Sahel - a strip of land with little rain fall that devides the desert from wetter areas, Savannah - open grass land in Africa with scattered trees, Rain Forests - the region near the Equator that is moist with densely wooded areas,

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