What is evaporation?

An Evaporation is when water from ocean, or any sort of water source is heated up and mixed in the air or gets evaporated into the clouds as a steam is called evaporation.

How does it happens?

when there is heat over the surface of the water or around the surface of where water is the water gets evaporated in to the air. It will be then get into clouds as a steam, when the clouds gets full it will empty them self as a rain on the surface of Earth. This process is called water cycle.