QUESTION

Hard

Environment & Ecology

Prelims 2022

Which one of the following lakes of West Africa has become dry and turned into a desert?

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Explanation

Lake Faguibine in Mali is a prime example of increasing aridity . Here's how it changed over the years, as seen through false-color Landsat satellite images

  • Initially, it was one of the largest lakes in West Africa, fed by the Niger River during floods.
  • In 1974, it spanned approximately 590 square kilometers (230 square miles).
  • A decline in precipitation from the late 1980s led to its gradual drying.
  • By the late 1990s, traditional livelihoods like fishing , agriculture , and livestock herding became impractical.
  • Despite the resumption of normal rainfall after 2000, the lake has remained nearly dry.

Lake Victoria is the largest lake in Africa and remains filled with water. Lake Oguta is located in Nigeria and is still a freshwater lake. Lake Volta is one of the largest artificial lake by surface area in the world and remains filled with water from the Volta River.

Lakes of West Africa

Lakes of West Africa

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