Description of the water cycle, how and where is circulating.Water on Earth occur in three forms. First - there is liquid in the seas and oceans and on Dachau as surface water, lake, river and groundwater. The second form is solid - ice crystals in the atmosphere, snow, glaciers, long Marcellina The third form is the form of gas - is nothing less than the open water vapor in the atmosphere and soil. Oceans collect the most water, but salt water. We need water to live, fresh, is a very small fraction - 2.5% by volume throughout the hydrosphere. The relatively constant amount of water on earth remains the circulation in nature, called hydrological cycle. It covers the processes occurring both in the atmosphere (evaporation, condensation, precipitation, moisture transport), the biosphere (download water and putting it in the process of respiration, which is transpiration) and lithosphere (signalize, flow of underground and surface). The hydrological cycle is distinguished by the circulation of small and large. Large includes evaporation from the oceans, condensation, the movement of water vapor, precipitation and run-signalize Little includes in the ocean evaporation, condensation, precipitation, and outflow signalize