LIFE IN THE SAHARA DESERTLIFE IN THE SAHARA DESERT Mr. Herneisen| 2008-09| Hood River Valley High...
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Transcript of LIFE IN THE SAHARA DESERTLIFE IN THE SAHARA DESERT Mr. Herneisen| 2008-09| Hood River Valley High...
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LIFE IN THE SAHARA DESERTMr. Herneisen| 2008-09| Hood River Valley High School
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VOCABULARY
• Desertification– Process of land becoming more and more dry
• Drought– Unusually long period of little or no rain
• Marginal Land– Land not well suited for growing crops
• Pastoral Nomad– Group of herders who move their animals from place
to place in search of pasture and water
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GEOGRAPHIC SETTING• World’s largest desert
– Receives less than 5 inches of rain per year
– Highest temperature recorded: 136 degrees (1922)
• Sahel– “Edge” or border of the desert
– Receives more rain than desert
– Marginal land, with mostly pastoral nomads living there
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MORE THAN JUST SAND
• Three Major Landforms– Ergs
• Seas of sand dunes
– Regs• Gravel covered plains
– Hammadas• High, rock covered plains
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ADAPTING TO THE DESERT• Tuareg people
– Nomadic herders, living in small groups
– Use camels/donkeys to move from place to place
– Live off animals and trading
• Using Technology– Lightweight plastic containers– Satellite phones– Drilling machines for water– Bush planes for travel– Trucks to haul heavy loads
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THE OASIS ENVIRONMENT• Springs that bubble out of the ground• Some are man made• 90 large oases in the Sahara• Can supply water for a whole village• Date Palm trees used for food, shelter,
tools.
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THE SAHEL ENVIRONMENT• “Desertification” occurring due to little
rainfall and human causes:– Long term droughts– Over farming and grazing of the land– Deforestation causing erosion
• Land is blowing away
– Major threat to marginal lands