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11 Cards in this Set

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