What is the water cycle?

The water cycle or hydrological cycle is the movement of the earth's water. Water is in constant movement and is subject to a number of processes and changes in assets as it passes through the water cycle. At any moment, the water molecule may exist as a liquid, steam or ice. The sun warms the water formations on the ground, causing part of the water to evaporate or change from liquid to gas. Plants also help to replace water from liquid to gas through transpiration

The water vapor returns to the form of the liquid when it cools in a process known as condensation , resulting in clouds and fog. When condensed water becomes heavy enough, it falls back to the ground when clotting . Most precipitation is rain, but there are other forms, including hail, snow and snow.

under the freezing temperature, water has a solid form of ice or snow. This water CHVS changes, become liquid water or sublimation , passing directly from solid to a gaseous state without the middle liquid phase. Liquid waterMoving the Earth's surface, including molten snow or ice, is called drain . Any movement of water that does not include a change in the state of the material is called advection . The movement of water from the earth's surface to the soil is called infiltration and the movement of groundwater below the earth's surface is called the barrel -flow flow .

Some water cycle processes move very quickly, as they are clotting, while others may take millions of years, such as changes in lakes or glaciers. Any place where water can be stored during a water cycle is called tank . Some tanks are very short -term, such as the atmosphere in which the reform of the water molecule on average for just nine days. Other tanks are extremely tough. The oceans have an average stay of 3,200 years and deep groundwater can remain on Earth for more than 10,000 years.