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Garland Schimmel ∙
Wind carrying sand grains deposits the sand when the wind slows down or hits an obstacle.
cutting and polishing exposed rock surface
desert pavement <--- wrong
gravel sized particles
chemical weathering..
barchan dunes
Nile river
Lowering the land.
longitudinal dunes
Southeast
During the recent ice age, glaciers covered almost 30 percent of earths land.
The thick loess deposits in South Dakota, Nebraska, and Iowa come from glacial sediments.