Understanding Ocean Acidification

The video highlights the critical role oceans play in our lives, providing oxygen, food, and climate regulation. It introduces ocean acidification, a process caused by increased carbon dioxide absorption, leading to lower pH levels and increased acidity. This change threatens marine life, particularly species reliant on carbonate ions for shell formation. The video emphasizes the urgency of reducing carbon emissions to mitigate these effects and preserve marine ecosystems for future generations.

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

• One-third

• Two-thirds

• Half

• Three-quarters

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

• Ocean salinization

• Ocean acidification

• Ocean warming

• Ocean pollution

How much of the carbon dioxide emitted into the atmosphere have the oceans absorbed?

• 10%

• 25%

• 75%

• 50%

What is the expected increase in ocean acidity by the end of this century if carbon emissions are not reduced?

• 50%

• 100%

• 170%

• 200%

What is a major concern for marine species as ocean acidity increases?

• Increase in salinity

• Decrease in carbonate ions

• Decrease in oxygen levels

• Increase in water temperature

Which marine species is known as a sea butterfly and is affected by ocean acidification?

• Pteropod

• Krill

• Whale

• Salmon

What percentage of cold-water corals are projected to be affected by ocean acidification by the end of the century?

• 30%

• 70%

• 50%

• 90%

What percentage of marine life do coral reefs support?

• 10%

• 75%

• 25%

• 50%

What is the primary action suggested to slow down ocean acidification?

• Reduce water pollution

• Increase ocean exploration

• Reduce carbon dioxide emissions

• Increase fishing

Who needs to work together to address the issue of ocean acidification?

• Scientists only

• Industries only

• Everyone including individuals, industries, and governments

• Governments only