What happens to pH levels in regions where there is more carbon dioxide present?
a. Carbon dioxide does not heavily impact pH levels.
b. The pH levels increase in these regions.
c. The pH levels decrease in these regions.
d. The seawater is able to buffer enough that there is no change.
ANS: C
The pH level in the ocean can be altered in the ocean with changes in carbon dioxide. Higher levels of
carbon dioxide which often occurs at middle depths in the ocean causes the water to be less alkaline.
Information can be found in the section The Ocean's Acid-Base Balance Varies with Dissolved
Components and Depth
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