Ocean Acidification Quiz 1

Which of the following is a direct effect of ocean acidification on marine life?

• Increased growth rates of fish

• Decreased ability of shellfish to form shells

• Enhanced photosynthesis in marine plants

• Increased oxygen levels in water

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DOK Level 2: Skill/Concept

What is the primary chemical process that leads to ocean acidification?

• Photosynthesis

• Respiration

• Dissolution of carbon dioxide in seawater

• Nitrogen fixation

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DOK Level 2: Skill/Concept

How does ocean acidification specifically impact coral reefs?

• It increases the growth rate of corals

• It enhances the structural integrity of coral skeletons

• It reduces the availability of calcium carbonate needed for coral growth

• It promotes the proliferation of coral predators

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DOK Level 2: Skill/Concept

Which of the following is a mitigation strategy for ocean acidification?

• Increasing the use of fossil fuels

• Reducing carbon dioxide emissions

• Promoting deforestation

• Increasing plastic waste in oceans

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DOK Level 2: Skill/Concept

Explain how global warming is connected to ocean acidification.

• Global warming decreases the amount of carbon dioxide in the atmosphere, reducing ocean acidification.

• Global warming increases the amount of carbon dioxide in the atmosphere, which dissolves in seawater and leads to ocean acidification.

• Global warming has no effect on ocean acidification.

• Global warming reduces the temperature of oceans, which decreases acidification.

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DOK Level 2: Skill/Concept

Which method is commonly used for monitoring ocean acidification?

• Satellite imaging

• pH sensors deployed in the ocean

• Counting marine species

• Measuring ocean salinity

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DOK Level 2: Skill/Concept

Analyze the impact of decreased pH levels on the marine food web.

• Decreased pH levels have no impact on the marine food web.

• Decreased pH levels can disrupt the food web by affecting the survival of key species like plankton and shellfish.

• Decreased pH levels only affect large marine predators.

• Decreased pH levels increase the population of all marine species.

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DOK Level 3: Strategic Thinking

Evaluate the effectiveness of marine protected areas (MPAs) in mitigating the effects of ocean acidification.

• MPAs completely eliminate the effects of ocean acidification.

• MPAs have no impact on ocean acidification.

• MPAs can help protect vulnerable species but do not address the root cause of ocean acidification.

• MPAs increase the rate of ocean acidification.

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DOK Level 3: Strategic Thinking

Discuss the role of carbonate ions in the process of ocean acidification.

• Carbonate ions increase the pH of seawater, reducing acidification.

• Carbonate ions react with carbon dioxide to form bicarbonate, which decreases the availability of carbonate for shell formation.

• Carbonate ions have no role in ocean acidification.

• Carbonate ions are produced by marine organisms to neutralize acidification.

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DOK Level 3: Strategic Thinking

How does the dissolution of carbon dioxide in seawater lead to a decrease in pH?

• Carbon dioxide reacts with water to form carbonic acid, which dissociates into hydrogen ions and bicarbonate, increasing acidity.

• Carbon dioxide increases the salinity of seawater, which lowers pH.

• Carbon dioxide reacts with oxygen to form ozone, which decreases pH.

• Carbon dioxide has no effect on the pH of seawater.

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DOK Level 3: Strategic Thinking