Ocean Acidification and Its Impacts

The video discusses ocean acidification, a critical threat to marine life and economies, caused by the ocean absorbing CO2. It highlights the impact on marine ecosystems, particularly in polar regions, and the cascading effects on human societies reliant on marine resources. The video emphasizes the need for reducing CO2 emissions and increasing awareness and policy action to mitigate these effects.

What is the primary cause of ocean acidification?

• Plastic pollution

• Overfishing

• Absorption of CO2 by the ocean

• Increase in ocean temperature

How does ocean acidification affect calcifying organisms?

• It increases their population

• It makes it easier for them to build shells

• It has no effect on them

• It makes it harder for them to build shells

Which regions are most affected by ocean acidification?

• High latitude regions

• Desert regions

• Urban areas

• Tropical regions

What role do small plankton play in the marine food web?

• They are primary producers

• They decompose organic matter

• They bridge phytoplankton and fish

• They are top predators

What is a major consequence of disrupting the marine food web?

• Increase in fish population

• Stability of marine ecosystems

• Decline in fish and predator populations

• Improved water quality

Why is ocean acidification a concern for human food security?

• It reduces the availability of seafood

• It increases the cost of seafood

• It makes seafood more nutritious

• It has no impact on human food security

What is the most effective way to combat ocean acidification?

• Increase plastic recycling

• Reduce CO2 emissions

• Enhance fishing practices

• Develop new marine species

What is a suggested technical solution to ocean acidification?

• Reducing ocean salinity

• Increasing ocean temperature

• Introducing alkaline solutions to the ocean

• Adding more fish to the ocean

How many countries have national ocean acidification plans according to the discussion?

• 100 out of 195

• 50 out of 195

• 195 out of 195

• 13 out of 195

Why is public awareness important in addressing ocean acidification?

• It helps politicians prioritize the issue

• It increases ocean temperatures

• It has no impact on policy

• It reduces CO2 emissions directly