| A | B |
| savanna | a grassy, tree dotted plain |
| supply | the quantity of some product or good |
| demand | the desire people have for a particular item |
| griot | people who tell stories that describe historical events |
| distribution map | shows how one particular feature is spread over an area |
| population density | the number of people living in a given amount of space |
| Ghana | a major power in Africa, located at the southwestern edge of the Sahara |
| Mombasa | located on an island of present-day Kenya, it was one important trading center |
| Zanzibar | a main Swahili city that was an important trading center, it was located on a larger island |
| Mogadishu | this was one of the largest coastal cities. It contolled much of Africa's gold trade from 1000 to 1300 |
| Great Zimbabwe | a main trading center for 400 years, it was surrounded by the biggest stone wall known |
| sofala | an important Swahili coastal city |