What was the greatest source of income for the king of Ghana?

Question

Quizplus · Accepted Answer

The greatest source of income for the king of Ghana was his gold export monopoly. Ghana was known for its abundant gold reserves and the king controlled the trade in gold, which made him very wealthy. The salt trade was also important, but not as significant as the gold trade. The slave trade was not directly controlled by the king of Ghana, although it did occur within the kingdom. His royal estates may have generated some income, but not nearly as much as the gold trade.

What Was the Greatest Source of Income for the King