Ocean Acidification Quiz

What percentage of human-produced carbon dioxide is absorbed by the oceans?

• 50%

• 10%

• 30%

• 70%

What is the effect of increased atmospheric carbon dioxide on the equilibrium between gaseous and aqueous carbon dioxide?

• The equilibrium shifts to the right, decreasing dissolved carbon dioxide.

• The equilibrium remains unchanged.

• The equilibrium shifts to the left, reducing dissolved carbon dioxide.

• The equilibrium shifts to the right, increasing dissolved carbon dioxide.

What compound is formed when carbon dioxide dissolves in water?

• Hydrochloric acid

• Nitric acid

• Sulfuric acid

• Carbonic acid

How does the dissociation of carbonic acid affect the pH of the oceans?

• It has no effect on the pH.

• It decreases the pH, making the oceans more acidic.

• It increases the pH, making the oceans more basic.

• It stabilizes the pH at a neutral level.

Since the industrial revolution, by how much has the pH of the oceans decreased?

• 10 pH units

• 1 pH unit

• 0.1 pH units

• 0.01 pH units