A. Air temperature
B. Saturation vapour pressure
C. Relative humidity
D. Dew point temperature
✅ The correct answer is option D.
Dew point is a good indicator of the air’s actual water vapour content, unlike relative humidity, which takes the air’s temperature into account. High dew point indicates high water vapour content; low dew point indicates low water vapour content.
Dew point is a good indicator of the air’s actual water vapour content, unlike relative humidity, which takes the air’s temperature into account. High dew point indicates high water vapour content; low dew point indicates low water vapour content.