What are the processes involved in the formation of rain?
Evaporation, Condensation
When water bodies are heated during the daytime, a large amount of water evaporates and goes into the air. This is called evaporation. The hot air rises up carrying water vapour along with it. As the air rises, it expands and cools. This phenomenon is called condensation. The condensation of water vapour results in the formation of clouds. These clouds are carried away with the help of wind and when they become heavy they fall down in the form of rain.