Loess is a deposit of wind-blown silt primarily composed of unweathered angular grains of quartz and feldspar.
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Q1: Since many desert regions have internal drainage,
Q2: Because sand-sized grains are heavier than silt
Q3: A desert is any region which has
Q4: A playa lake is a deep long-lasting
Q5: Where sand supply is limited a barchan
Q7: A mesa is capped by sedimentary rocks
Q8: Rapid down cutting of desert stream channels
Q9: The world's best-known deserts lie in a
Q10: In passing over a dune, wind scours
Q11: A pediment is an erosional surface underlain
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