What was identified as the primary cause of oyster larvae dying by the billions in hatcheries?

• Lack of food

• High water temperature

• Corrosive seawater

• Bacterial infection

What is the main cause of the ocean's increasing acidity?

• Volcanic eruptions

• Absorption of carbon dioxide from the atmosphere

• Increased ocean temperatures

• Runoff from agricultural lands

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How does ocean acidification affect the shells of oysters, scallops, and other shellfish?

• Makes them grow faster

• Makes them thicker and stronger

• Makes them thinner and more brittle

• Changes their color

What do scientific models predict about the prevalence of corrosive waters at the sea surface in the next 30 to 40 years?

• They will become less common.

• They will remain at current levels.

• They will become corrosive 50-60% of the time.

• They will only affect deep ocean areas.