On Earth, water has a very important role in cycling through different forms and uses to be brought to all forms of life and help sustain them. The water cycles may begin as water in the oceans and largest fresh water sources. These are stores of water reserves, pools, from which most water leaves and returns to. The water here is evaporated up into the atmosphere by the solar rays that eject molecules from the surfaces of the water. The vapor is carried up because of its low density travels up into the atmosphere. The vapors are carried by the wind and coriolis effect across countries. Certain elevations can capture the clouds and force them into valleys. Here it hits cold air and can no longer maintain the energy to stay as a gaseous molecule so it condenses into water droplettes that hang in the high atmosphere. When enough water drops condense the gravity becomes to much and it falls back down to the ground in various forms of precipitation. The water then soaks into the earth and is used by different organisms: plants suck it up and it evaporates out the leaves, aquatic organisms swim in it and breathe oxygen through it, birds and small critters drink it off of leaves, etc. Eventually, the water runs down elevation in creeks and streams and through the soil until it finds itself back into a pool where the cycle once again takes place.
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