Marine Biomes

In this zone of the ocean, the most photosynthesis occurs.

• euphotic zone
• disphotic zone
• aphotic zone

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NGSS.MS-LS1-6

Why does most of the photosynthesis/primary productivity take place in the upper layers of the ocean?

• Photosynthesis is primarily driven by ocean currents.
• Most photosynthesis takes place in the upper layers of the ocean because of sufficient sunlight and nutrient availability.
• Photosynthesis occurs equally throughout the ocean depth.
• Nutrients are more abundant in the deep ocean layers.

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NGSS.MS-LS2-1

Why is climate change expected to reduce the ocean's productivity?

• Due to increased temperatures, reduced oxygen, and changes in nutrient availability.

• Increased carbon dioxide levels enhance ocean productivity.
• Warmer waters lead to more fish populations.
• Climate change has no impact on nutrient cycling.

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What causes coral bleaching?

• Coral bleaching is caused by overfishing of coral species.
• Coral bleaching occurs due to excessive sunlight exposure only.
• Coral bleaching is a natural process that happens every year.
• Coral bleaching is caused by stress factors like increased water temperature and pollution.

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NGSS.MS-LS2-4

NGSS.MS-LS1-5

Which colors of light are most able to penetrate deep into the ocean?

• blues and greens
• reds, oranges, and yellows

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NGSS.MS-PS4-2

At which point on the graph would a fishing company be profitable?

• Point A
• Point B

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NGSS.HS-ETS1-3

Which method of oil spill clean up is shown in this picture?

• Sorbents
• Disperants
• Skimmers
• Booms

Give 2 ways that oil spills can affect the ecosystems.

• Contamination of water and soil, harming aquatic life

• Enhanced growth of aquatic plants.
• Long-term damage to habitats

• Increased oil production efficiency.

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NGSS.MS-LS2-4

NGSS.MS-ESS3-3

What was the Deepwater Horizon incident?

• A minor oil leak from a fishing boat in the Gulf of Mexico.
• A natural gas explosion on a land-based drilling site in Texas.
• A major oil spill in the Gulf of Mexico caused by a blowout on an offshore drilling rig

• A successful oil drilling operation in the North Sea in 2010.

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NGSS.MS-LS2-4

NGSS.MS-ESS3-4

What was the significance of the Deepwater Horizon incident?

• It was a minor event with little public interest.
• It had no impact on environmental regulations.
• The incident resulted in one of the worst environmental disasters in history.

• It highlighted the benefits of offshore drilling.

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-2

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