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

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

(a) Lake Victoria

(b) Lake Faguibine

(c) Lake Oguta

(d) Lake Volta

Answer: Lake Faguibine

Lake Faguibine is a lake in Mali on the southern edge of the Sahara Desert situated 80 km west of Timbuktu and 75 km north of the Niger River to which it is connected by a system of smaller lakes and channels. In years when the height of the annual flood of the river is sufficient, water flows from the river into the lake. Since the Sahel drought of the 1970s and 1980s the lake has been mostly dry. Water has only rarely reached the lake and even when it has done so, the lake has been only partially filled with water. This has caused a partial collapse of the local ecosystem.

In 2021, Lake Figuibine is entirely dry. A gas emanating from the dry ground destroys the remaining vegetation and renders the soil unfit for cultivation.