LT 9.4 Retake #1

What is a carbon footprint in the context of ecosystems?

• The amount of carbon dioxide absorbed by plants in an ecosystem.

• The total amount of greenhouse gases produced by human activities in an ecosystem.

• The carbon content found in the soil of an ecosystem.

• The carbon emissions from vehicles in an ecosystem.

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NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

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Which process in plants is primarily responsible for carbon cycling?

• Respiration

• Photosynthesis

• Transpiration

• Fermentation

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NGSS.HS-LS1-5

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How do decomposers contribute to the carbon cycle?

• By producing oxygen during decomposition.

• By breaking down dead organisms and releasing carbon dioxide.

• By absorbing carbon dioxide from the atmosphere.

• By converting carbon dioxide into fossil fuels.

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What is one major impact of deforestation on the carbon cycle?

• Increased carbon storage in trees.

• Decreased carbon dioxide levels in the atmosphere.

• Increased release of carbon dioxide into the atmosphere.

• Enhanced photosynthesis rates.

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NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Which of the following best describes the process of ocean carbon absorption?

• Oceans release carbon dioxide into the atmosphere.

• Oceans absorb carbon dioxide from the atmosphere and store it.

• Oceans convert carbon dioxide into oxygen.

• Oceans use carbon dioxide to form fossil fuels.

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NGSS.HS-ESS2-6

What role does photosynthesis play in the carbon cycle?

• It releases carbon dioxide into the atmosphere.

• It converts carbon dioxide into organic compounds.

• It breaks down organic matter into carbon dioxide.

• It stores carbon dioxide in fossil fuels.

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NGSS.HS-LS2-5

How does climate change affect carbon dynamics in ecosystems?

• It stabilizes carbon levels in the atmosphere.

• It increases the rate of carbon sequestration in oceans.

• It disrupts the balance of carbon sources and sinks.

• It decreases the amount of carbon dioxide released by human activities.

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NGSS.HS-ESS2-4

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What is the primary source of carbon for photosynthesis in plants?

• Soil carbon

• Atmospheric carbon dioxide

• Carbon from decomposed organisms

• Carbon from fossil fuels

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NGSS.HS-LS2-5

Which of the following is a consequence of increased ocean carbon absorption?

• Ocean acidification

• Decreased marine biodiversity

• Increased oxygen levels in oceans

• Enhanced coral reef growth

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NGSS.HS-ESS2-6

What is the effect of increased carbon dioxide levels on global temperatures?

• Decreased global temperatures

• No effect on global temperatures

• Increased global temperatures

• Stabilized global temperatures

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NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

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