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Desert: an area of land that receives very little rain and has very little
vegetation
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Deserts can generally be found in low-lying, flat areas where precipitation by rain is blocked by mountain ranges or wind currents that prevent cool wet
air from reaching a destination. Deserts generally are made up of sand or loose dirt. While most deserts appear light brown or tan in color, many can appear
red, grey or even green depending on the type of rock that was eroded. The largest deserts often have sand dunes, which can
be easily identified. Most dunes appear like ripples in an ocean, where wind currents push the sand across the land.
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