What 3 empires flourished because of trade in west africa

Ghana

Mali

Songhai

Explanation:

A succession of three great kingdoms came to power as their people, gained control of valuable trade routes in West Africa. Ghana was the first of these empires, followed by the kingdoms of Mali and Songhai. Historians think the first people in Ghana were farmers along the Niger River.

answer; seasons change because earth tilts on its axis; and the angle of the tilt causes the northern and southern hemisphere to trade places throughout the year;