Ocean Systems Quiz

Humans depend on ocean systems for many things. Plants in the ocean produce ________ that living things need to carry out their life processes. Humans cannot drink ocean water but through the process of ________ humans can make drinkable freshwater. Which terms best complete the sentences?

• carbon dioxide; remediation

• carbonate; air sparging

• oxygen; desalination

• oxygen; remediation

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Look at the graph. It shows the number of red snappers that are old enough to reproduce per year. Red snappers are an important fish resource in the Gulf of Mexico for humans to use as food. The numbers of red snappers were starting to decline until a rebuilding plan was started to increase the population of fish old enough to reproduce. The rebuilding plan includes a designated fishing season, limits on the number of fish caught, and size limits. How has the rebuilding plan impacted the red snappers? Use the graph to explain whether the rebuilding plan is successful.

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Which resources does the ocean provide that people depend on for survival? Select two answers.

• Boating provides recreation

• Desalination provides fresh water

• Fishing provides food

• Mining provides diamonds and gold

Runoff from land contains pollutants and plastics. What impact does this have on the ocean? Select two answers.

• Plastic waste in the ocean creates additional nutrients for aquatic life.

• Plastic waste in the ocean creates huge garbage patches.

• Pollutants from runoff in the ocean are correlated with dead zones.

• Pollutants from runoff in the ocean improve aquaculture.

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How do plastics hurt ocean animals? Select two answers.

• Plastics are eaten by ocean animals

• Plastics produce oxygen

• Plastics trap ocean animals

• Plastics block sunlight

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Explain how oysters are a resource humans depend on and how they help to reverse the damage people do to the ocean.

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