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By Elisa Miller Keystone College
DESERTS By Elisa Miller Keystone College
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Deserts Types of Deserts: Hot and Dry Cold Deserts Gobi Desert in Asia
Desert of Antarctica
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Locations Cover 20% of the Earth’s land mass Latitudes:
15-28° North and South of the equator
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Locations
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Climate Less than 10% rainfall per year Hot Deserts: Cold Deserts:
20 to 25° C Maximum Temperature: 43.5 to 49° C Cold Deserts: Winter: -2 to 4° C Summer: 21 to 26° C Antarctica: -89.2°C to -93.4°C
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Special Features Desert animals are small Desert plants:
Don’t have to drink at all All the water they need from their food Burrow under ground Nocturnal Desert plants: Hairy leaves
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Wild Life Hot and Dry Deserts: Cold Deserts: Insects Arachnids
Reptiles Birds Mourning Wheatears Horned Vipers Cold Deserts: Antelope Ground Squirrels Jack Rabbits Kangaroo Rats (etc.)
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Plants Hot and Dry: Cold Deserts: Minimal plant life No plants
Maybe few grass or moss Lichen Algae
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Threats to ecosystem Itself Global warming: Dry up watering holes
Increased number of wildflowers (kill shrubs and slow growing trees) Irrigation for agriculture: Increased salt levels in the soil Grazing animals Potassium cyanide used in gold mining Off-road vehicles Oil and gas production Nuclear waste may be dumped in deserts Nuclear testing grounds
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References http://www.blueplanetbiomes.org/desert.htm
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Thank You
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