Key Term Plateau- A flat or gently rolling land that is higher than nearby areas.

Key Term Africa- The second-largest continent in the world. It is large enough that you could put the United States, Europe, China, and most of India within its borders.

Key Term Rainforest- A dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.

Key Term Migration- The physical movement by humans from one area to another.

Key Term Climate Zone- A specific area that has a specific climate. Each climate zone will have its own certain parameters. Climate zones can be tropical, dry, temperate, or polar. 

Key Term Cultural Diffusion- The movement of customs and ideas from one culture to another.

Key Term Desert- An arid region that receives little precipitation. Most deserts receive an average of fewer than 10 inches of precipitation each year. 

Key Term Caravan- A company of traders or other travelers journeying together, often with a train of camels, through the desert.