People crowd the shores of Lake Victoria and the Gulf of Guinea coast, while the Kalahari and Namib deserts hold far fewer people. Which factor best explains the difference?

Ethiopia's highlands are more densely settled than the hot, dry Afar lowlands. What factor best explains this pattern?

In the Sahel, towns and farms cluster along the Niger River and Lake Chad, with thinner settlement in nearby dry steppe. What accounts for this distribution?

Parts of the Congo Basin rain forest are less densely settled than nearby highlands. Which factor helps explain the lower density?

South Africa's Gauteng region has dense cities despite being inland and relatively dry. What pull factor helped that urban concentration grow?

Highland Kenya and eastern Uganda, around Mount Kenya and Mount Elgon, are densely farmed. Besides rainfall, which physical factor helps support this dense settlement?

Many of West Africa's largest cities, such as Lagos, Accra, and Abidjan, sit on the Gulf of Guinea coast. What helped these coastal cities grow so large?

Nigeria has hundreds of home languages, but English is used in national government, courts, and many secondary schools. What role does English play?

In Tanzania, many people speak an ethnic language at home, while Swahili is used in markets, radio, and public life across groups. What role does Swahili play?

In Senegal, Wolof, Pulaar, Serer, and other languages are spoken at home, while French is used in courts, government, and higher education. What role does French play?

In DR Congo, Lingala is used in Kinshasa, popular music, the military, and river trade even though many people have other home languages. What role does Lingala play?

South Africa has many official languages, but English is widely used in business, universities, courts, and national media. What role does English often play?

Mozambique has many Bantu languages spoken at home, while Portuguese is used in national government and schooling. What role does Portuguese play?

Across much of the Sahel, Islam is widely practiced from Senegal through Mali and Niger. What diffusion route best explains this belt?

Islam is common along the Swahili coast of East Africa, from Somalia toward northern Mozambique. What best explains this coastal pattern?

Christianity is widespread in much of southern Africa and parts of central Africa. Which diffusion process was especially important?

Ethiopia's highlands have had Orthodox Christian communities for many centuries. What connection helped this early spread?

In West Africa, Islam is often stronger in the Sahel, while Christianity is often stronger near the coast and forest zones. What explains this pattern?

Muslim communities are found far inland in Mali and Niger as well as along coastal East Africa. What does this distribution show about Islam's spread?

In Nigeria, a band of central states lies between the mostly Muslim north and the largely Christian south, with many communities of both faiths. What is this zone called?

A village's family compounds are built in a ring facing inward around a shared enclosure where cattle are kept at night. What does this cultural landscape indicate?

A Niger Inland Delta village places homes on raised ground and moves herds as floodwaters rise and fall. What does this settlement pattern show?

A weekly market town has stalls around a bus stop where farmers bring yams, shea nuts, and cloth from nearby villages. What role does the town play?

In a Sahel town, thick mud-brick walls, flat roofs, and shaded narrow lanes dominate the built landscape. What can you infer?

A Swahili coastal settlement has mosques, coral-stone houses, narrow streets, and a harbor-facing market. What shaped this cultural landscape?

A population pyramid has a very wide base and narrows steeply toward a thin top. What does that shape indicate?

A population pyramid's youngest bars are narrower than the bars for older children and young adults. What change does this suggest?

A country's pyramid shows a very large 0-14 age group and a much smaller working-age adult share. What pressure is most likely?

A population pyramid is nearly rectangular from children through adults and has a noticeable older population. What does that age structure suggest?

A population pyramid narrows sharply after age 60 and has only a small elderly top. What does that shape indicate?