The process in which water vapour turns into water when cooled is called _______.
When water is heated, it gets converted into steam by a process called A. When steam is cooled, it is again converted into water by a process called B. Identify A and B.
When water is cooled, it gets converted into ice by a process called P. When ice is warmed, it gets reconverted into the water in a process called Q. Identify P and Q.