Water is one of the most important substances on earth. All plants and animals must have water to survive. If there was no water there would be no life on earth.
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Fresh water is necessary for life. Freshwater resources are unevenly distributed on Earth's surface. The availability of fresh water affects how many organisms can live in an area. The availability of fresh water depends on the local resources and composition of the underlying rocks and sediments. The sustainability of freshwater sources depends on the rates at which water is being removed vs. being stored.
Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, therefore creating an unequal sharing of electrons. From fish in frozen lakes to ice floating on water, Christina Kleinberg describes the effects of polarity.
