The water cycle

Water is a renewable resource due to the continuos water cycle. The first part of it is when the sea water evaporates and forms the clouds, after that the water vapour condenses and precipitates (rains) over land. When those two processes have been completed the surface run off goes back to the sea, and cycle begins again, and again, and again...

Using water to create energy such as heat and electricity is sustainable as water will always be in constant supplydue to rain water, snow and many other precipitation methods.

Water is normally collected in reservoirs and dams. Rain water and river water is stored here until someis let out and turned in turbines instantly creating kinetic energy, which is soon transferred into electrical energy. When this process takes place on the three gorges dam it supllies up to 13 cities, 140 towns and over 1,300 villages.


This is a picture of the hydrologic cycle showing each stage. This cycle has no beginning or ending, it is just a continous, and natural supply of water. This cycle does not differ for any ocean, land area or country.



Through the cycle many processes go through as already i have mentioned water vapor and precipitation. Some examples of other processes as seen in the diagram arecondensation which is the opposite of evaporation. Condensation occurs when a gas is changed into a liquid. Secondly anothr important process is Infiltration.Infiltration is an important process where rain water soaks into the ground, through the soil and underlying rock layers. Runoff is when Much of the water that returns to Earth as precipitation runs off the surface of the land, and flows down hill into streams, rivers, ponds and lakes. the most common is Evaporation evapouration is the process where a liquid, in this case water, changes from its liquid state to a gaseous state. Lastly Transpiration is As plants absorb water from the soil, the water moves from the roots through the stems to the leaves. Once the water reaches the leaves, some of it evaporates from the leaves, adding to the amount of water vapor in the air. This process of evaporation through plant leaves is called transpiration.