Ocean Acidification and Marine Life

What percentage of the Earth's surface is covered by oceans?

• Half

• One-third

• Two-thirds

• Three-quarters

What is the term used to describe the process of increasing ocean acidity?

• Ocean warming

• Ocean salinization

• Ocean acidification

• Ocean deoxygenation

How much carbon dioxide have the oceans absorbed from the atmosphere?

• 10%

• 75%

• 25%

• 50%

What happens to seawater pH as more carbon dioxide enters the ocean?

• It goes down

• It fluctuates

• It goes up

• It remains the same

What is one of the main tools used to collect seawater samples?

• Barometer

• Large bottles

• Hydrometer

• Thermometer

By how much has ocean acidity increased since pre-industrial times?

• 50%

• 26%

• 10%

• 75%

What is the expected increase in ocean acidity by the end of this century?

• 200%

• 100%

• 170%

• 50%

What is a pteropod commonly known as?

• Sea horse

• Sea star

• Sea butterfly

• Sea cucumber

What percentage of all marine life do coral reefs support?

• 10%

• 25%

• 50%

• 75%

What is the primary solution to slow down ocean acidification?

• Reduce plastic pollution

• Increase marine protected areas

• Reduce carbon dioxide emissions

• Increase fishing