Best describes the temperature at which the air is completely saturated with moisture.

• A. Dew Point
• B. Humidity
• C. Condensation
• D. Saturation Point

Answer: (C)

The dew point is the temperature at which air becomes completely saturated with moisture. At that temperature, air holds the maximum possible water vapor for the given pressure, so relative humidity reaches 100%. If the air cools further, the excess water vapor condenses into liquid water, forming dew, fog, or clouds. Humidity describes how much water vapor is present, not the temperature itself. Condensation is the process of vapor turning into liquid and happens when air reaches the dew point, but it is about the change of state, not the specific saturation temperature. Saturation point is a more general or informal way to talk about being fully saturated, but the precise term for the temperature is dew point.