The water
Published June 29, 2016
Two-thirds of the Earth's surface is the water, whose mass is 1,5*1021 kg. The water makes the cycle in nature. On the surface of oceans and seas the water evaporates rapidly, forming clouds. From the clouds, it is poured over the Earth, it seeps through the soil, forming a considerable size of the underground reservoirs of fresh water. And of them originate the river...