S.S. Chapter 20
Terms in this set (18)
What causes desertification?
-Long periods of dought
pour farming methoids
What type of land is threatned by desertification?
Why are date oalms important?
It gives food (its fruit the date is eaten fresh or dried)
It gives building materials (trunk and leaves are used for building material)
It gives fuel (Date pits, or seeds, are burned as fuel or to feed animals)
Fiber from its bark are used to make rope
Why do pastrol nomads move from place to place?
When the pasture in one area is used up, they move their animals to fresk grazing areas.
How have peple of the Sahel tried to stop desertification?
-Learning new farming methoids -Planting crops that grow in dry places
-Using coal for cooking instead of wood
-Shifting agriculture gives worn out fields a chance to rest
-Windbreakers protect crops from blowing sand and creeping dunes
Who are the Tuareg?
The Blue Men of the desert. They are pastrol nomads and where long blue flowing robes.
Please name and describe the three desert landforms?
Regs- gravel covered plains
Hammadas- high rock covered flatland
Erges- Seas of sand with tall sand dunes
What is the major difference between the Sahel and Sahara region?
The Sahara is a desert and the Sahel is marginal land going through desertification. The Sahel recieves more rain.
Please name the ways that Oases are created?
dig wells by hand
use drilling machines
An unusually long period in which little or no rain falls.
Land that is not well suited for growing crops.
The process by which land becomes more and more dry until it turns into desert. This may be caused byclimate change, human activities, or both.
Groups of herders who move with their animals from place to place in search of pasture.
How much of the Earth's land is arid or semiard?
Are the world's deserts growing or shrinking?
Growing because marginal land turns into deserts.
What human activities contribute to desertification?
-Pour farming methoids
-Over grazing by animals
-Deforestation/cutting down trees
How might people ada[t to living in areas threatned by desertification?
Better farming methiods
Go over Africa's Political Borders