The Niger River forms a distinctive inland delta in which country before continuing to the sea?

Which African lake is the saltiest, with salinity levels that make it toxic to most life?

The Blue Nile and the White Nile merge to form the main Nile in which city?

The Okavango River never reaches the sea. After flowing into the Kalahari, what happens to its water?

Africa's highest point is the summit of Kilimanjaro. What is the lowest point on the African continent?

The Orange River forms the border between South Africa and which neighboring country?

The Sahel is a semi-arid belt running across Africa just south of the Sahara. What does the word 'Sahel' mean in Arabic?

Lake Malawi is notable for containing more fish species than any other lake on Earth. Approximately how many fish species does it contain?

The Limpopo River forms the northern border of South Africa with which two neighboring countries?

Which African desert, located along the Atlantic coast, is known for producing large quantities of diamonds washed down by ancient rivers?