Across
- 3. Coffee and cacao beans are examples of_________.
- 4. A nomad traveling through the Sahara would probably visit a(n)_______for water.
- 6. A(n)______is a system for producing, distributing, consuming, and owning goods and services.
- 7. Silt helps make soil_______.
- 10. People who practice______raise just enough crops to support their families.
- 11. Africa is often called the______continent because much of the continent is made up of raised, mostly level areas of land that drop off sharply near the sea.
- 12. A(n)_______is someone who move around to various places, often following the same route each year, to make their living.
- 13. A(n)______is a deep crack in the surface of Earth.
Down
- 1. To______is to add variety.
- 2. A(n)______is a region of tall grasses with scattered trees.
- 5. In areas that receive plenty or rain, many farmers do not need to ______their crops.
- 6. ______is the height of land above sea level.
- 8. A period of little or no rainfall is a(n)_______.
- 9. The White Nile in Sudan and the Blue Nile in the highlands of Ethiopia are________of the Nile.
