Drought conditions and high temperatures over the Great Plains are most likely caused by a

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Quizplus · Accepted Answer

Continental tropical air masses are hot and dry because they form over hot, dry land areas. They can cause drought conditions and high temperatures over the Great Plains. Alternatively, maritime air masses (both tropical and polar) would bring moisture, which would not result in drought conditions. Continental polar air masses are cold and dry, which could cause low temperatures, but not necessarily drought.

Drought Conditions and High Temperatures Over the Great Plains Are