Understanding the Carbon Cycle

Which of the following is a part of the carbon cycle?

• Atmosphere

• Vegetation

• Surface Ocean

• All of the above.

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NGSS.MS-LS2-3

What role do fossil fuel emissions play in the carbon cycle?

• They are a natural source of carbon

• They are a human-made source of carbon

• They do not affect the carbon cycle

• They remove carbon from the atmosphere.

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NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

NGSS.HS-LS2-5

Which of the following is a fossil fuel?

• Solar energy

• Wind energy

• Coal

• Geothermal energy

Why does deforestation increase carbon dioxide in the atmosphere?

• A) Trees release carbon dioxide when cut

• B) Trees can no longer remove carbon dioxide

• C) Trees produce more oxygen

• D) Trees absorb more sunlight.

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NGSS.MS-ESS3-4

What is one environmental impact of deforestation?

• Increased biodiversity

• Decreased carbon dioxide

• Increased carbon dioxide

• Decreased oxygen

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Who measured the atmospheric carbon dioxide levels at Mauna Loa Observatory?

• Charles Keeling

• Albert Einstein

• Isaac Newton

• Marie Curie

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NGSS.HS-ESS2-6

What is the approximate amount of carbon absorbed by nature every year?

• 500 billion tonnes

• 788 billion tonnes

• 1000 billion tonnes

• 450 billion tonnes

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the approximate amount of CO2 emissions from fossil fuel burning?

• 23 billion tonnes

• 444 billion tonnes

• 450 billion tonnes

• 332 billion tonnes

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

What is the amount of carbon exchanged with the ocean?

• 23 billion tonnes

• 444 billion tonnes

• 450 billion tonnes

• 338 billion tonnes

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NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Which process contributes 444 billion tonnes of carbon exchange?

• Fossil Fuel Burning

• Vegetation & Land

• Ocean

• Industrial Activities

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NGSS.HS-ESS2-6

NGSS.HS-LS2-5