A. The length of human hair changes as the relative humidity changes.
B. During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.
C. The relative humidity is a measure of the air’s actual water vapor content.
D. A change in the air temperature can change the relative humidity.
✅ The correct answer is option C.
The relative humidity is a measure of the air’s actual water vapour content this statement is incorrect.
The relative humidity is a measure of the air’s actual water vapour content this statement is incorrect.