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These are evaporation, transpiration, condensation, precipitation and surface run off.Water evaporates from different sources including oceans, seas and rivers due to sun’s heat. Slowly these vapours cool down and condense to form clouds.In order to provide an explanation of water cycle, it can be divided into four main stages.
Take a big glass bowl and fill ¼ of the bowl with water.
Place an empty mug in the center of the bowl, be careful not to splash any water, and make sure the level of the water is less than the height of mug.
Plants need water to fetch nutrients from the soil and stay nourished, animals need water to quench their thirst and human beings require water for several purposes including drinking, cooking, cleaning, and washing to name a few.
Water also serves as habitat for various creatures. Thus, all the mentioned needs are being taken care of since centuries.
It is circulated in the atmosphere and forms clouds that burst and reach the Earth’s surface in the form of rain.
Thus, the water that evaporates gets replenished by the natural process of water cycle which occurs continuously. This cycle is also called the H2O cycle or the hydrologic cycle. Water cycle keeps providing us with freshwater continuously.This is a reversible cycle, which means every stage in the cycle keeps repeating itself.On the base of the container, spread some soil and spray some water on it to make it damp. Now, take a small bowl and fill it halfway with water and place it in the center, and scatter few pebbles around. Every living being on Earth needs water to survive.It is high time we must understand the importance of water in our lives and the necessity to save it.There are many simple ways in which we can avoid wastage of water such as bathing with less water, watering plants with waste water from RO, cleaning the car with a wet cloth rather than pipe, etc.Be it plants, animals or human beings – all three require water.While plants and animals mainly require water for the purpose of drinking or as habitat, human beings use water for several purposes.It is sad but true that due to various human activities and human negligence, the water present on Earth is getting polluted.Fresh water is getting depleted as the water bodies are being polluted due to industrial as well as domestic waste.