| A | B |
| What happened when the Sahara became drier? | People migrated to West Africa |
| What animals were used in caravans? | camels |
| What is the name of the trade and cultural center on the Niger River | Jenne-jeno |
| How far is is from Jenne-jeno and Nok? | 900 miles |
| What was the effect of trade between West Africa and North Africa? | West Africans learned iron-making technology and improved tools and weapons |
| The people of Jenne-jeno have surplus crops | the people are free to do mroe than farm |
| The Niger river floods Jenne-jeno | the soil becomes fertile |
| Camel caravan links Jenne-jeno with North Africa | Jenne-jeno grows into a large trade center. |