Human Impact on Ocean Systems

How do human activities such as overfishing impact ocean systems?

• They increase the biodiversity of marine life.

• They can lead to the depletion of fish populations.

• They have no significant impact on ocean systems.

• They help in the natural regeneration of coral reefs.

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Which of the following is a way humans depend on ocean systems?

• For mining coal.

• For fresh drinking water.

• For transportation and trade.

• For growing wheat.

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What is one effect of oil spills on ocean systems?

• They fertilize the ocean floor.

• They create new habitats for marine life.

• They can harm marine animals and plants.

• They have no effect on ocean systems.

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How does plastic pollution affect ocean systems?

• It decomposes quickly and enriches the water.

• It provides food for marine animals.

• It can entangle and harm marine life.

• It has no impact on ocean systems.

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Which human activity is most likely to cause ocean acidification?

• Planting trees.

• Burning fossil fuels.

• Building wind farms.

• Recycling plastic.

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What role do oceans play in regulating Earth's climate?

• They have no effect on the climate.

• They absorb and store solar energy.

• They only affect local weather patterns.

• They cool the Earth's core.

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Which of the following is a sustainable practice to reduce human impact on ocean systems?

• Overfishing.

• Using single-use plastics.

• Implementing marine protected areas.

• Dumping waste into the ocean.

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How does coastal development affect ocean systems?

• It creates more habitats for marine life.

• It can lead to habitat destruction and pollution.

• It has no impact on ocean systems.

• It improves water quality.

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What is one way humans can reduce their impact on ocean systems?

• Increase the use of fossil fuels.

• Reduce, reuse, and recycle materials.

• Increase the use of single-use plastics.

• Dump more waste into the ocean.

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Which of the following is a consequence of rising sea levels due to human activities?

• Increased land area.

• Loss of coastal habitats.

• Decreased ocean salinity.

• More freshwater availability.

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