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drought



A temporary, often disastrous climatic condition of extreme dryness when an area's natural water supplies are insufficient for plant, specifically crop, needs. Drought occurs when loss of water from the soil by evaporation or otherwise greatly exceeds the water precipitation from the atmosphere; this may result from high winds, low humidity, and heat. Areas with a well-defined dry season suffer seasonal drought. See also desert.


Related category

   • ECOLOGY AND THE ENVIRONMENT


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