What typically happens to an air mass as it moves over a body of water?

What typically happens to an air mass as it moves over a body of water?

• A. It becomes warmer and dryer
• B. It loses humidity
• C. It becomes cooler and gains moisture
• D. It remains unchanged

Answer: (C)

When an air mass moves over a body of water, it typically becomes cooler and gains moisture. This process occurs because water from the surface of the body is continually evaporating, introducing water vapor into the air. The air mass, now saturated with moisture, can lead to increased humidity levels. Additionally, as the air cools over the water—due to the lower temperature of the water compared to the air—it can lead to condensation, which may produce clouds and precipitation. This dynamic is an important factor in weather systems, influencing local climate conditions and precipitation patterns.

When an air mass moves over a body of water, it typically becomes cooler and gains moisture. This process occurs because water from the surface of the body is continually evaporating, introducing water vapor into the air. The air mass, now saturated with moisture, can lead to increased humidity levels. Additionally, as the air cools over the water—due to the lower temperature of the water compared to the air—it can lead to condensation, which may produce clouds and precipitation. This dynamic is an important factor in weather systems, influencing local climate conditions and precipitation patterns.