Q: Humans & Oceans CHECK

How do humans depend on oceans?

• Humans rely on oceans for internet connectivity.
• Oceans are primarily used for agriculture.
• Oceans are a source of fresh water for drinking.
• Humans depend on oceans for food, climate regulation, transportation, resources, and recreation.

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How do humans negatively impact oceans?

• Humans negatively impact oceans through pollution, overfishing, habitat destruction, climate change, and invasive species.
• Humans improve ocean health through conservation efforts.
• Humans have no effect on ocean ecosystems.
• Humans only impact oceans through recreational activities.

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How do humans positively impact oceans?

• By polluting the water with waste
• By overfishing and depleting resources
• By ignoring marine conservation efforts
• Humans positively impact oceans by engaging in conservation and sustainable practices.

How does the ocean provide oxygen?

• The ocean provides oxygen through photosynthesis by marine plants, especially phytoplankton.
• Oxygen is released from underwater volcanoes.
• Marine animals produce oxygen through respiration.
• The ocean absorbs oxygen from the atmosphere.

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What advantage might there be to using fish as a food source over traditional meat?

• Fish is more expensive than traditional meat.
• Fish has a longer shelf life than traditional meat.
• Fish is harder to cook than traditional meat.
• Fish is often healthier and more sustainable than traditional meat.

How does the ocean impact world economy?

• The ocean primarily impacts the economy through agriculture.
• The ocean contributes to the world economy by supporting fisheries, tourism, shipping, and natural resource extraction.

• The ocean has no effect on the world economy.
• The ocean only affects local economies, not global ones.

How does the ocean control CO₂ levels?

• The ocean controls CO₂ levels by absorbing it from the atmosphere and storing it through plant photosynthesis.

• The ocean only absorbs CO₂ from underwater volcanic activity.

• The ocean has no effect on CO₂ levels in the atmosphere.

• The ocean releases CO₂ into the atmosphere during storms.

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Why would temperatures on Earth be more extreme without oceans?

• Without oceans, the atmosphere would be thicker and trap heat.
• Oceans create more clouds, leading to cooler weather.
• Oceans absorb sunlight, causing cooler temperatures.
• Temperatures on Earth would be more extreme without oceans due to the lack of heat regulation.

Drag the text boxes and images to the appropriate part of the chart.

Groups:

(a) Benefits Humans ONLY

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(b) BOTH Humans and Environment Benefit

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(c) Benefits Ecosystems ONLY

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• 50% of world's oxygen comes from ocean

• oceans regulate temperature on Earth

• oxygen is dissolved back into ocean water

• 17% of edible meat comes from oceans

• boating and recreation

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• freshwater

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• medicines produced from ocean life

• kelp forests provide habitat

• using CO₂ to build shells

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Which human impact do you think is the biggest problem?

• Plastic pollution
• Climate change
• Deforestation
• Overpopulation

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