Water Cycle Process. The earth s water cycle began about 3 8 billion years ago when rain fell on a cooling earth forming the oceans. Sublimation occurs when snow or ice changes directly into water vapour without becoming water.
It is a process where water at the surface turns into. The water cycle is like a big circle and doesn t really have a starting point. The water cycle is made up of five processes.
The earth s water cycle began about 3 8 billion years ago when rain fell on a cooling earth forming the oceans.
The earth s water cycle began about 3 8 billion years ago when rain fell on a cooling earth forming the oceans. The earth s water cycle began about 3 8 billion years ago when rain fell on a cooling earth forming the oceans. The sun is the ultimate source of energy and it powers most of the evaporation that occurs on earth. Water is always changing states between liquid vapor and ice with these processes happening in the blink of an eye and over millions of years.
