According to the picture below we will see the circulation of water on Earth. Water evaporation from the sea and floating on air as clouds. Rain or snow from the clouds have agreed on ground. Absorption of water into the ground to become groundwater, or a river and then return to the ocean.
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![](//thimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)