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11 Cards in this Set
- Front
- Back
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how much of the world's deserts are dominated by sand
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25%
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desert pavement
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gravel and small rocks that dominate 75% of deserts
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Dunes are prominent in
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desert and coastal area
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inactive dunes are
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anchored by vegitation(ex. nebraska sand hills)
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active dunes are
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not anchored by vegitation and are migrating
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loess is
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wind blown silt
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it moves much further distances because
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it is very small and light
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loess covers how much of the earth's total land area
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10%
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loess covers how much of the US's land area
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30% mainly in the midwest
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loess is usually
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vert fertile
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loess deposits can be
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up to 300 feet deep
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