The Water coming out of your kitchen tap is four billion years old and might well have been sipped by a Tyrannosaurus rex .
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Unlike most precious resources, Water cannot be used up; it can always be made clean enough again to drink--indeed, Water can be made so clean that it\'s toxic.
Rather than only three states of water--liquid, ice, and vapor--there is a fourth, "molecular water," fused into rock 400 miles deep in the Earth, and that\'s where most of the planet\'s Water is found.
The Water coming out of your kitchen tap is four billion years old and might well have been sipped by a Tyrannosaurus rex