Water plays a significant role in sustaining life and nature on planet Earth. The water on the earth is always in some sort of movement in the form of a cycle which is known as the 'Water cycle‘ The four main stages of the water Cycle is i.Evaporation ii Condensation iii Precipitation iv Collection (Stream flow, infiltration) (i) Evaporation : When the sun shines, the water from the ocean or lake evaporates due to heat releases from the sun. When water evaporates, it turns into water vapor and goes up into the atmosphere. * Transpiration takes place by plants. In this process, excess of water turns into vapour through tree leaves into atmosphere. (ii) Condensation This water vapour gets together with other water vapour and turns into a cloud. (iii) Precipitation: When clouds get dense, they drop water back to earth in the form of precipitation like rain, snow, hails. (iv) Collection: When water falls back down to the earth, it finds its way on the ground surface int...