7.11 B: Importance of the Ocean

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

• carbonate
• remediation
• oxygen
• desalination

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How has the rebuilding plan impacted the red snappers?

• It decreased the number of red snappers.

• It increased the number of red snappers old enough to reproduce.

• It had no effect on the red snapper population.

• It caused the red snappers to migrate to a different area.

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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

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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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What is the purpose of placing concrete reef balls in the ocean?

• To support the growth of oysters

• To create a barrier for fish

• To increase ocean temperature

• To reduce ocean salinity

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Why are oysters considered a resource for humans?

• They are used as building materials

• They are a food resource and help clean water

• They produce pearls

• They are used in medicine

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What is the primary role of oysters in marine ecosystems?

• They provide habitat and filter water

• They are predators of small fish

• They produce sand

• They are a source of oxygen

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Which of the following is a benefit of oyster reefs?

• They prevent coastal erosion

• They increase water temperature

• They decrease biodiversity

• They increase salinity levels