Increased atmospheric CO₂ concentrations might have what effect on seawater?

Question

Quizplus · Accepted Answer

Increased atmospheric CO₂ concentrations will lead to an increase in dissolved CO₂ in seawater, which will combine with water to form carbonic acid, resulting in a decrease in seawater pH and increased acidity. This increased acidity will cause a decrease in carbonate concentrations in seawater, which will make it harder for organisms such as corals and mollusks to form their shells and skeletons.

Increased Atmospheric CO₂ Concentrations Might Have What Effect on Seawater