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deserts are regions with the common characteristics of less than 250mm of precipitation per year throughout the whole area. it may be a hot and dry land, but there are also cold deserts and littoral deserts, which are not consistently hot. In addition, the aridity of the desert is dependent not only on precipitation but on evaporation and transpiration. If less water is evaporated or transpired from the region than is precipitated into the region, it can not be a desert.

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13y ago

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