gravity and solar radiation in combination give the planet a permanent process, which is called "the water cycle on Earth," which is a kind of engine life.If it ever stops, that all living things die.This hydrologic cycle can be divided into three main types.Inland turnover is characteristic only of a certain area of land.Small cycle occurs when moisture evaporates from the ocean and the rain back into the water.All processes occur in the hydrosphere and atmosphere, clouds and the clouds are not blown away by wind.And the big water cycle caused by evaporation and the formation of clouds.But unlike previous hydrologic cycle in this case can blow the cloud away from the point of initial evaporation.
so happened that the water in the ocean is not safe to drink because it contains a large amount of salt.If she took the water cycle on Earth in its purest form, then all the continents would have filled the desert.However, the nature decided otherwise.Despite the high concentration of salt directly in the ocean, water returns to the surface of the planet in precipitation in the form of freshened.This occurs as follows.Every second from the surface water sources, whether it is a small lake or oceans, moisture evaporates under the influence of solar heat.If we look at a small portion of the reservoir, then is taken into account one or more drops, the air rises to the top layers.However, given that the land on the planet less every second into the atmosphere rises a huge water mass.Part of it goes beyond the limits of the Earth.In the troposphere and stratosphere water is converted into rain clouds, and the wind carries them around the ball of our planet.Then the continents precipitation falls as snow, rain, hail, and others.So, every day we see the water cycle on Earth, the eternal process, the beginning of which is equivalent to the appearance of our planet.
However, not all of the moisture from the ocean surface precipitation.Sometimes the evaporation is so strong that the water drops do not leave the surface of the earth, but remain on it in the form of mist.Then we see a mixed water cycle.His next scheme.Water begins to rise from the surface, but it drops are not uniform.Smaller and lighter are in the atmosphere, is still heavy in the hydrosphere and safely returned to the ocean.The first drops are transformed into clouds or clouds that travel under the influence of wind on the planet.These are usually poured directly at continents.Precipitation contribute to filling the reservoirs on land as well as they penetrate the earth's surface, where they form ground water.On the continent the moisture returns to the ocean to carry its river.
can not mentioning the water cycle on Earth, do not say those drops, which move in space.While our planet passes in its orbit, the side that is closer to the Sun loses a piece of its atmosphere, and then, when she turns on the light, then restores it.At the atmospheric layer is lost and water droplets present there.They are converted into a kind of ice crystals and the dew settles on cosmic dust.Being completely transparent and very small, they have long kept their existence a secret.And only recently, scientists still managed to find them.Surely, this water also plays a role, but not in the planetary and universal scale.However, just this side of the water cycle is unknown to us.
