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Biological Roles of Water: Why is water necessary for life?

creator Molly Sargen, University of Harvard
topic water importance, water properties, water quality
landscape landscape unknown
solution implementation unknown
regional relevance Canada
type report

Water makes up 60-75% of human body weight. A loss of just 4% of total body water leads to dehydration, and a loss of 15% can be fatal. Likewise, a person could survive a month without food but wouldn’t survive 3 days without water. This crucial dependence on water broadly governs all life forms.  Clearly water is vital for survival, but what makes it so necessary?

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