Hydrosphere - The cradle of life

The sea area accounts for 71% of the Earth's surface. If the sea water is covered evenly on the ground, the ground will have a layer of hydrographs of 2.700m thick.

But about 4-5 billion years ago, when the Earth was just born, its surface had no water droplets, no life. Later on, the Earth cools down, the water vapor in the atmosphere is deposited into water, the rain flows into the depression, accumulating, gradually becoming the original lake and sea. The first living substances germinated in the sea, it was the original lake.

Earth's hydrosphere is located between the atmosphere and the atmosphere. It consists of sea, lake, river, lagoon, groundwater, stream creek (in liquid form) and glacier (in the form of solids). According to scientists' estimates, the total amount of water on the Earth's surface is about 1.4 billion km ³ , of which the sea accounts for 97.3% of the water in the form of glaciers above the ground, accounting for 2.7%. Atmospheric water compared to the above two types is insignificant.

Circulation movement of Hydrosphere (Photo: cmmacs)

Under the sun, Earth's hydromassage is constantly moving . Above-ground water evaporates into water vapor in the atmosphere, the vapor in the atmosphere with a suitable condition stops falling into rain water falling to the ground and the sea. The surface water converges into streams, the river flows into the lake, into the sea or seeps into the ground, through the cracks of the lava to become groundwater, or directly evaporate back into the atmosphere. During water circulation, the atmosphere is the main transport tool of water. Thanks to the circulation of water on the Earth with a large scale, constantly resting, it makes the land change frequently, all things proliferate.