Question

which refers to the measure of the amount of water vapor in the air?
condensation
dew
humidity
sleet

Explanation:

• Condensation is the process of water vapor turning into liquid water.
• Dew is liquid water droplets that form on cool surfaces at night.
• Humidity is indeed the measure of the amount of water vapor in the air.
• Sleet is a form of precipitation consisting of ice pellets.

Answer:

humidity