Dew point is ________

A. Amount of actual water vapour present per unit volume of air

B. Incoming solar radiation

C. A low pressure system in lower atmosphere

D. A temperature at which a given sample of air becomes saturated

Answer: Option D

Solution(By Examveda Team)

Dew points indicate the amount of moisture in the air. The higher the dew points, the higher the moisture content of the air at a given temperature. Dew point is a temperature at which a given sample of air becomes saturated.