Potential evapotranspiration (PE),when reduced by the deficit (D),yields the actual evapotranspiration value for a given time period.

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This statement is true. The actual evapotranspiration (ET) is the amount of water that is actually evaporated and transpired during a given time period, and is equal to the potential evapotranspiration (PE) minus any water deficit (D) that may exist in the soil or vegetation. Therefore, the equation for ET is ET = PE - D.

Potential Evapotranspiration (PE),when Reduced by the Deficit (D),yields the Actual