Not everything is used when it comes to food but everything is used with energy in the body!
Answer:
Hematite
Explanation:
The iron content of the mineral gives it a red hue after it has spent a long time exposed to air and moisture
Answer:
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<span>The Chemistry. When carbon dioxide (CO2) is absorbed by seawater, chemical reactions occur that reduce seawater pH, carbonate ion concentration, and saturation states of biologically important calcium carbonate minerals. These chemical reactions are termed "ocean acidification" or "OA" for short.</span>
