Ocean Acidification and Marine Life

The video highlights the critical role of oceans in our lives, providing oxygen, food, and climate regulation. It explains ocean acidification, a process where increased carbon dioxide levels lower ocean pH, affecting marine life. Scientists monitor these changes, revealing alarming trends. The video stresses the urgent need to reduce carbon emissions to prevent severe impacts on marine ecosystems and future generations.

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