Chapter 23, Problem 7A

Why does warm moist air form clouds when it rises?

To determine

To Explain: Warm moist air rises and form clouds.

Explanation of Solution

Introduction: The formation of a cloud is a natural process. It depends on the rate of evaporation and condensation.

The warm air has less density, so it rises above the cool air and cools & expands in the atmosphere. The relative humidity of air increases. The water vapors start condensing to form tiny water droplets. The millions of tiny waters drop of liquid water collected to form a cloud.

Conclusion:

The warm air rises, cools and condenses to form water droplets which eventually form cloud.