Conversion of water into vapor and its accumulation in the atmosphere is an extremely important process on which the change of climate is dependent. There are many such agents among the hydro – logical cycle operating on the earth which affect the movement of water. Due to the energy received from the sun, the water of oceans, by converting into the form of vapor, reaches the atmosphere.
Winds blowing from the oceans towards the land provide the motion to this water vapor and trans – locate it from one place to another place. By this, the water vapor condenses and rainfall occurs on the earth’s surface. Water from the rain flows on the earth’s surface in the form of rivers and channels and it eventually reaches the seas.
In this way, some part of this water from the rain reduces by the vegetations through the process of transpiration, and some water again reaches the atmosphere through the rivers, lakes, ponds, etc. by the process of the evaporation.
