Which river in western Africa has a unique crescent boomerang shape, flowing northeast into the Sahara Desert before curving south toward the Atlantic Ocean?
Answer and explanation
Correct answer: D. Niger River
- Step 1: The Niger River rises in the Guinea Highlands just 240 kilometers from the Atlantic, but flows away from the sea into the Sahara past Timbuktu before looping southeast into Nigeria.
- Step 2: Spanning 4,180 kilometers, it is the third-longest river in Africa after the Nile and Congo.
Answer
Niger River
Why not the others: 'Senegal River' forms the border between Senegal and Mauritania; 'Volta River' is in Ghana and forms Lake Volta behind the Akosombo Dam; 'Gambia River' flows across The Gambia.
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