A is the correct choice please mark brainliest ; )
1. Goods that originated from Mali: gold and copper. Goods that Mali obtained through trade: ivory salt horses
2. B, oral traditions
3. C, Ghana's ability to control the gold-salt trade helped them grow into a powerful empire.
4. Clans
5. B, It became the language of Songhai law and learning
6. Controlling trade routes
Geothermal Power Plants
When the water reaches the surface, the pressure is dropped, which causes the water to turn into steam