pH

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Measures if a solution is an acid or a base. The scale ranges from zero to fourteen. Seven is neutral. A pH of less than seven is acidic and a pH greater than seven is basic.

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  • Glossary: Ocean Acidification (OA)
    Over long periods of time, the pH of the ocean is lowered (becomes more acidic), primarily due to addition of carbon dioxide (CO2) in the atmosphere. The pH is lowered through a series of chemical reactions that take place in the ocean.
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