Question

Which statement about the Sahara is most closely

associated with the West African civilizations of
Ghana and Mali?
(1) Irrigation systems made it possible to farm in
the Sahara.
(2) Salt mined in the Sahara was exchanged for
gold.
(3) Oases in the Sahara served as their capital
cities.
(4) The Sahara prevented the spread of Islam to
the region.

Answer 1

"(2) Salt mined in the Sahara was exchanged for gold" is most closely
associated with the West African civilizations of Ghana and Mali since demand for salt was higher.