| A | B |
| Drought | long period of extreme dryness & water shortages |
| Cacao | tropical tree whose seeds are used to make chocolate |
| Subsistence farming | farmers grow only enough food to feed their families |
| Mangrove | tropical tree that grows along Nigeria's coast with roots that extend both above & beneath the water |
| Bauxite | mineral resource found in Guinea, which is used for making aluminum |
| Compound | group of houses surrounded by walls, in which most rural Nigerians live |
| Overgrazing | when animals strip areas so bare that plants can not grow back |
| Phosphate | mineral used in fertilizers which is found in Senegal |
| Desertification | changing useful land into desert |
| Two causes of desertification | drought & overgrazing |
| Capital of Nigeria | Abuja |
| Capital of Ghana | Accra |
| Sahel forms a border between | Sahara Desert & more fertile lands to the south |
| Coastal countries of West Africa have a good climate for | agriculture |
| Most of Nigeria's income comes from | oil exports |
| Nigeria's people work mainly as | subsistence farmers despite large oil reserves |
| Nok | earliest inhabitants of Nigeria |
| Three great early African empires that arose in the Sahel area | Ghana, Mali, Songhai |
| Early Europeans called it "land of gold" | Ghana |
| African country with largest population | Nigeria |
| Arabic word which means "border" | Sahel |
| 25% of world's bauxite is found in | Guinea |
| First African to win Nobel Prize in literature | Wole Soyinka |
| Religion practiced by most people of Sahel | Islam |
| Five countries of Sahel | Mauritania, Mali, Niger, Burkina-Faso, Chad |
| Two landlocked countries of West Africa | Mali & Burkina-Faso |
| West African country made up of several volcanic islands | Cape Verde |
| The only West African country that was never a colony | Liberia |
| World's largest artificial lake | Lake Volta |
| Many people of Sahel have been forced to give up nomadic lifestyle because | long severe droughts have caused them to give up herding & move into the towns |
| Liberia's capital | Monrovia named after American President Monroe |
| First African country to become independent | Ghana |
| Mali's most famous ruler | Mansa Musa |
| Tombouctou | leading center of Islamic learning established by Mansa Musa & attracting Muslims from all over to study there |
| Nigeria's largest city | Port city of Lagos |
| Large gulf off coast of West Africa | Gulf of Guinea |
| Arabic word meaning "border" | Sahel |
| Founded as home for freed slaves | Sierra Leone & Liberia |
| Dry dusty wind blowing from the Sahara | harmattan |
| Savanna | grassland with few trees |