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10 cards from this deck
Wind-driven processes in deserts
Heated air rises, cooler air replaces it creating wind
Barren surfaces, few features, little friction to slow wind
Wind-carried particles strike rock surfaces (sandblasting)
Wind removes fine particles, leaves coarse material behind
Surface of coarse pebbles left after deflation
134 metres below sea level
Less than 0.2 mm diameter
One-half to one-third of wind speed
25% of all grain movement
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