Water as the chemical element, can be in three conditions — liquid (water), firm or crystal (an ice, a snow) and gaseous (pairs). Under influence of solar heat water evaporates from a surface of the World ocean and rises in an atmosphere. Here pairs cools down, it is condensed also by rains spills on the ground. The salts containing in sea water, do not evaporate. Therefore to clouds the water which is dropping out on the ground, — too fresh(stale) rises fresh(stale) pairs, and.
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