RIVERS AND LAKES :
many african rivers are long with large flows.some rivers,such as the Congo and the Zaire,are navigable for long distances.The river Congo has the largest flow in Africa and the second largest in the world.The river Nile is the largest river in the world with a measurement of 6.756 KM.
Large plateaus are found throughout Africa.African´s average altitude is high(750 m).
-Several deserts,such as the Sahara and Klahari,are found on these plateaus.
-Several mountains rangesare also found on the plateaus.The east of the continent is the highest part.
-Some depressions, such as the Congo and Niger basins, are found between the central plateaus.
Africa is the third-largest continent in the world and the second most-populous continent, after Asia.
The continent is surrounded by the Mediterranean Sea to the north, both the Suez Canal and the Red Sea along the Sinai Peninsula to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. The continent has 54 sovereign states, including Madagascar, various island groups, and the Sahrawi Arab Democratic Republic.