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Home > Oceans Of The World > Question

The ongoing decrease in the pH of the Earth's oceans, known as ocean acidification, is caused by the uptake of what from the atmosphere?

0
A) Sulphur Dioxide
B) Oxygen
C) Carbon Dioxide
D) Nitrogen

Correct Answer: C) Carbon Dioxide

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. This is a direct consequence of increased atmospheric CO2.

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