• The whole process in which water evaporates and falls on the land as rain and later flows back into the sea via rivers is known as water cycle.
• When sun shines, water evaporates continuously from the water bodies and forms water vapour. This water vapour rises up and goes into the atmosphere.
• The plants absorb water from the soil and use it during the process of photosynthesis.
They also loose water by the process of transpiration.
• The water vapour produced by transpiration also goes into the atmosphere.
• The process of respiration and evaporation from the surface of animal body produces water vapour which goes into the atmosphere.
• The evaporation and condensation of water vapour leads to rain. During winter, the water falls down in the form of dew or snow.
• All of the water that falls on the land does not immediately flow back into the sea. Some of it seeps into the soil and becomes part of the underground reservoir of fresh water.
• The underground water is again taken by plants and water cycle continues.
