Across
- 5. A system in which one country rules another area as a colony; the ruling country controls trade with its colony for its own benefit
- 7. A high, rock-covered flatland in the Sahara
- 9. A(n) _____ region is an area that is set apart from other places by the way of life of the people who live there.
- 13. Nomadic _____ involves the raising of livestock for food by moving herds from place to place to find pasture and water.
- 15. An isolated spot in a desert where water is found
- 16. The practice of clearing one area for farming for a few years and then moving on to another area when the first has lost its fertility is called _____ agriculture.
- 18. A version of a language that is spoken in a specific area
- 19. A powerful wind that blows south from the Sahara between October and March and coats everything with fine, gritty sand
- 21. A settlement made up of crudely built shacks, often lacking electricity, running water, and garbage service
- 23. Ethnic _____ refers to a variety of people from different ethnic groups.
- 24. The gradual wearing away of Earth's surface by the action of wind, water, ice, and gravity
- 25. A raised area of land, such as a hill or a mountain, with a flat top
Down
- 1. The policy of extending a country's power and influence through diplomacy of military force
- 2. Type of farming carried out mainly to provide food for farm families, with little surplus for sale to others
- 3. Type of farming that involves raising crops for sale, often on large farms
- 4. An unusually long period in which little or no rain falls
- 6. A broad, flat land covered with tall grasses and scattered trees
- 8. The process by which land becomes more and more dry until it turns into desert; may be caused climate change, human activities, or both
- 10. A(n) _____ group is a group of people who share a common language.
- 11. A geographic region with too little rainfall to support much plant life
- 12. A bowl-shaped depression, or hollow, in Earth's surface
- 14. A gravel-covered desert plain
- 17. Pastoral _____ move with their animals from place to place in search of pasture and water.
- 20. Land that is not well-suited for growing crops
- 22. The usually dry bed of a river or stream in a desert or semiarid area
- 26. A great sea of sand with tall sand dunes in the Sahara
