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Author Question: Explain how coastal dune fields need not originate in desert climates. What will be an ideal ... (Read 88 times)

magmichele12

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Explain how coastal dune fields need not originate in desert climates. What will be an ideal response?

Question 2

Why is South America the recipient of North African dust rather than the other way around? What will be an ideal response?



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leahchrapun

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Answer to Question 1

All you need for dunes to form is an abundance of sand, a lack of stabilizing vegetation, and wind. In
non-desert coastal dune fields, the sand supply simply overwhelms the vegetation.



Answer to Question 2

Global atmospheric circulation moves air masses across the Atlantic Ocean. The prevailing wind
direction is toward the west because there is a general westward convergence of airflow toward the
equator due to the Coriolis effect. These winds are called the trade winds. They occur both north and
south of the equator.






 

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