Answer:
The kingdom of Mali was not replaced by the kingdom of Ghana. So it is FALSE
Step-by-step explanation:
The Kingdom of Ghana was born in 750 and finished in 1068, taking the zone of Mauritania and Mali, while the Kingdom of Mali was born in 1235, 167 years after the fallen of Ghana, and finished in 1546, had under its power the current countries of Mali and Guinea, by this reason Ghana couldn't replace the Mali kingdom, because the first one mention rising many years before the second.