The amount of water vapor in the air is called _____.

The amount of water vapor in the air is called humidity. Humidity is a measure of the amount of water vapor present in the atmosphere and can be expressed in absolute terms or relative terms. Absolute humidity is the mass of water vapor per unit volume of air, while relative humidity compares the current amount of water vapor in the air to the maximum amount of water vapor the air can hold at a specific temperature, expressed as a percentage.

Humidity plays a crucial role in weather forecasting, climate studies, and various fields such as agriculture and construction. For example, high humidity can lead to discomfort on hot days and contribute to the formation of clouds and precipitation. Understanding humidity is essential for predicting weather patterns and managing environmental conditions.