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p. 11. Water, water everywhere …locked

  • John Finney

Abstract

Water (H2O) is the most abundant compound on the Earth’s surface and occurs naturally in gas, liquid, and solid forms. It is estimated that there are 1.9 billion billion tonnes of water on our planet with even more in the Earth’s mantle. ‘Water, water everywhere …’ outlines how water arose from the Big Bang, how it got to Earth, and describes how scientists deciphered its molecular structure. But why do we need it? Water maintains our climate, keeps all living things alive, is a major influence in forming the surface topography of the planet, and is also critical in what happens in planetary interiors, as well as in the location and eruptive style of volcanoes.

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