Water is a common chemical substance that is essential to all known forms of life. In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor. About 1,460 teratonnes of water covers 71% of the Earth's surface, mostly in oceans and other large water bodies.
Employed by cultures around the world in rituals and ceremonies, water bathes us from birth to death. Water is essential to life as we know it.
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