Anitha Dunga : Subject Matter Expert at Edumarz
Answer : When the land gets heated up the air gets raised along with water vapor. This forms the tiny droplets of water vapor by the process of condensation. This more and more condensation process forms clouds.
Clouds formed when the air consists of water vapors as much as it can hold. This is the saturation point where the group of tiny water droplets combine and form the cloud. The saturation point can be achieved through two ways. They are
Some amount of water vapor gets into the atmosphere through various biological activities like transpiration from plants, respiration from animals and humans etc. but this amount of water is comparatively very less.
During day time, the water from water bodies evaporates into the atmosphere due to heating of water bodies. This water which evaporated from water bodies condensed and formed clouds.
When the air gets heated, the hot air raises up carrying some water vapor from water bodies and a tiny amount of water from biological processes with it. As the air rises it expands and cools down. This cooling causes the water vapor in the air to condense and to form tiny droplets of water. The continuous process of condensation makes these tiny droplets bigger and bigger which leads to the formation of clouds.