There is a graph that shows changes in atmospheric carbon dioxide concentrations, seawater carbon dioxide concentrations (pCO,), and seawater pH over time. A decrease in the pH of water indicates an increase in acidity.

Question

In 5th grader response
In one sentence How does the amount of carbon dioxide in the atmosphere relate to the amount of carbon dioxide in seawater?
b. In one sentence How does the amount of carbon dioxide dissolved in seawater relate to its pH?

Answer 1

a. The amount of carbon dioxide in the atmosphere affects the amount of carbon dioxide that gets absorbed into the seawater.
b. When more carbon dioxide dissolves in seawater, it causes the water to become more acidic, which means the pH goes down.