Which term refers to the temperature at which air must be cooled for condensation to begin?

Which term refers to the temperature at which air must be cooled for condensation to begin?

• A. Hail
• B. Blizzard
• C. Dew Point
• D. Snow

Answer: (C)

Condensation begins when air is cooled to the point where it becomes saturated with water vapor—the dew point. At that temperature, the air can no longer hold all the water vapor, so it condenses into liquid water. The dew point depends on how much moisture is in the air—the more moisture present, the higher the dew point. This is why humid air often reaches condensation at a relatively warm temperature, leading to dew, fog, or clouds as the air cools. Terms like hail, blizzard, or snow describe precipitation or weather events, not the temperature at which condensation starts.

Condensation begins when air is cooled to the point where it becomes saturated with water vapor—the dew point. At that temperature, the air can no longer hold all the water vapor, so it condenses into liquid water. The dew point depends on how much moisture is in the air—the more moisture present, the higher the dew point. This is why humid air often reaches condensation at a relatively warm temperature, leading to dew, fog, or clouds as the air cools. Terms like hail, blizzard, or snow describe precipitation or weather events, not the temperature at which condensation starts.