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- 1. Multiple Choice
Which of these is a major difference between the Sahara and the Sahel?
The Sahara has larger forests.
The Sahel receives more rainfall.
The Sahara has more cropland.
The Sahel records higher temperatures.
- 2. Multiple Choice
Marginal land is ...
watered by an oasis.
on the edge of town.
not well suited for farming.
best used for raising cash crops.
- 3. Multiple Choice
What do ergs, regs, and hammadas have in common?
The are all desert flowers.
They are all desert animals.
They are all desert landforms.
They are all desert ecosystems.
- 4. Multiple Choice
What does this diagram tell about oases?
Oases are not found in deserts.
Oases are created in many ways.
Oases are only created by humans.
Oases are not fed by natural springs
- 5. Multiple Choice
What is the main reason pastoral nomads move from place to place?
to sell their trade goods
to care for their date palms
to clear new land for their crops
to find fresh pasture for their herds
- 6. Multiple Choice
Choose the statement that best explains why date palm trees are so important to life in the Sahara.
Date palms provide shelter for nomads and their herds.
Date palms provide food, fuel, and materials for homes.
Date palms provide drinking water for people and animals.
Date palms provide a cash crop for farmers on marginal lands.
- 7. Multiple Choice
All of the following are major causes of desertification EXCEPT:
overgrazing
deforestation
long-term drought
shifting agriculture
- 8. Multiple Choice
Which of the following are most threatened by desertification in the Sahel?
croplands
forested areas
marginal lands
wilderness areas
- 9. Multiple Choice
Which of the following can prevent desertification?
shifting agriculture
deforestation
long-term drought
forest fires
- 10. Multiple Choice
Desertification is a problem in the Sahel because ___.
land becomes increasingly dry until it turns into desert.
mountainous areas receive more rainfall.
underground streams flow down to the desert.
great seas of sand create tall sand dunes.
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