Exam 18: Arid Landscapes and Eolian Processes

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Subtropical ______ Pressure Systems dominate in arid environments.

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A

The backslope of a dune is a gradual slope that faces the prevailing winds.

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This sediment transport process requires that the sediment remains in contact with the surface at all times.

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Dunes that are stabilized by the presence of vegetation are called transverse dunes.

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The major desert in South America is the Atacama Desert.

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Approximately 25% of Earth's surface is covered by loess deposits.

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The backslope angle commonly falls between 10° and ____°.

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Erosion that occurs when particles grind against each other is termed

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A dry lakebed found in areas arid regions is called a(n)

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The speed of the wind blowing over arid locations impacts the size of the particle picked up.

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A desert pavement is created by

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Creep is the term used for rolling sediment along the surface of the Earth as a result of the wind.

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Dune fields in the Great Plains of the United States are more than 100,000 years old.

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The removal of sediment from a surface by wind action is called abrasion.

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The highest point of the dune is called the

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Extensive loess deposits are also associated with ___________ regions.

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Approximately ____% of the Earth's surface is covered by loess deposits.

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This type of dune is stabilized by vegetation and often starts as semicircular blowouts that elongate.

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Clay-sized particles are the easiest to pick up and transport through the actions of wind.

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A steep-sided hill or peak that is often a remnant of a plateau or mesa is called a butte.

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