Answer:
Pagkakahalintulad:
Ghana, Mali, and the Songhai Empire all had trade in common as the primary lifeblood of their civilizations.
Pagkakaiba:
They were different in that Ghana was an older polity, having collapsed before Mali would rise to power. Additionally, while each kingdom coexisted alongside the great Islamic powers of the time, Mali's rulers converted to Islam whereas Ghana's did not.
Explanation:
