If the air temperature in a room is 70°F,the saturation vapor pressure is 25 mb,the dew point temperature is 45°F,and the actual vapor pressure is 10 mb,then the relative humidity must be near ____ percent.
A) 15
B) 20
C) 35
D) 40

Question

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The Answer of If the air temperature in a room is 70°F,the saturation vapor pressure is 25 mb,the dew point temperature is 45°F,and the actual vapor pressure is 10 mb,then the relative humidity must be near ____ percent.
A) 15
B) 20
C) 35
D) 40

If the Air Temperature in a Room Is 70°F,the Saturation