A desert is a landscape region that receives very little precipitation. For a peice of land to be classified as a desert it must receive less than 250 mm of precipitation per year. Because of such a low level of precipitation deserts are known for supporting very little forms of life. With that said though, with a closer look deserts still have a wide variety of life.
Some of the largest and most known deserts in the world include:
SaharaKalahariNamibJudean DesertSimpson DesertGreat Sandy DesertSturt's Stony Desert Little DesertTaklamakan Rangipo DesertOften times, deserts contain valuable mineral deposits. These are often regions that were formed in the arid environment or that were exposed by erosion. Deserts are also ideal locations for human artifacts and fossils to be preserved because of their dry climate.
Most of the major deserts of the world are trade wind deserts which means that: dry winds dissipate cloud cover, which in turn allows more sunlight to heat the land. The second largest desert in the world, the Sahara of North Africa, which has seen temperatures as high as 56°C, is a trade wind desert.
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