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Erosion

Deserts A-Z

Arid   Very dry. Arid regions, such as deserts, have too little water to support plant life. 

Barchan   A crescent-shaped sand dune that slowly shifts along with the wind.

Butte   A desert hill with very steep sides and a flat top. A butte is made up of hard rock that does not easily wear away. It is like a mesa but smaller. 

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