The diagram illustrates the processes of conversion of liquid water from the earth surface to vapour state for the raining.
Overview, the water cycle is the continuous flow of water from all surface of earth. From melting snows and rain from mountains the water streams are formed which eventually reach ocean for evaporation and later rainfall.
Initially, about 80% of water vapours are formed from sea and rest from other sources of water. As the vapour rises up in the atmosphere, at some point there will be temperature variation and as a result, these vapours are converted into clouds, which are eventually dragged away into places.
When the clouds grew large enough, they are converted to droplets and initiate rain. This water along with melting ice in the mountains starts to flow through different paths on, above, and below the surface. Some quantities of water from these rains are either collected as a lake or absorbed by impervious layer before reaching sea.
