Which of these was crucial to the success of the Ghana empire

Gold and Salt

Explanation:

The Ghana Empire grew rich from this increased trans-Saharan trade in gold and salt, allowing for larger urban centers to develop. When, in 1957, the Gold Coast became the first country in sub-Saharan Africa to gain its independence from colonial rule, it renamed itself Ghana in honor of the long-gone empire.

Hope this helps!

Brain-List?

( sorry my answer is short they wont let me do just war so ignore this) xd

these civilizations were located around fertile rivers, where they could produce an abundance of crops