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Life's Little Essential: Liquid Water

Life's Little Essential: Liquid Water

Without liquid water, terrestrial life could not exist. All living organisms on Earth depend on water and its unique chemical and physical properties. In the search for life beyond Earth, scientists have focused their efforts on looking for signs of liquid water. This essay discusses the properties of liquid water that are conducive to life, pointing out that the biochemical reactions that sustain life need a fluid in order to operate, and that water is probably the best solvent in the universe.

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