The Carbon Cycle

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What is the Carbon Cycle?

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The Carbon Cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

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NGSS.HS-ESS2-6

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What process do plants and algae use to absorb carbon from the atmosphere?

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Photosynthesis.

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What do decomposing bacteria release back into the atmosphere?

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Carbon.

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What is a Carbon Sink?

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A Carbon Sink is a natural or artificial reservoir that absorbs more carbon dioxide from the atmosphere than it releases, helping to reduce the amount of CO2 in the air.

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NGSS.HS-ESS2-6

NGSS.HS-LS2-5

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What human activities have altered the carbon cycle since the mid-1800s?

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Human activities such as burning fossil fuels, deforestation, and industrial processes have significantly altered the carbon cycle.

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NGSS.HS-ESS2-6

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What is the role of photosynthesis in the carbon cycle?

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Photosynthesis transforms carbon dioxide into chemical energy in the form of glucose, which is used by plants and other organisms.

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NGSS.HS-LS2-5

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What is respiration in the context of the carbon cycle?

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Respiration is the process by which living organisms convert glucose and oxygen into energy, releasing carbon dioxide back into the atmosphere.

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NGSS.HS-LS1-7

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What is decomposition?

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Decomposition is the process by which dead organic matter is broken down by bacteria and fungi, releasing carbon back into the soil and atmosphere.

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What is a Carbon Source?

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A Carbon Source is a natural or artificial process that releases carbon dioxide into the atmosphere, such as burning fossil fuels or respiration.

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NGSS.HS-ESS2-6

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How do oceans contribute to the carbon cycle?

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Oceans absorb carbon dioxide from the atmosphere and provide a habitat for marine organisms that use carbon in photosynthesis.

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NGSS.HS-ESS2-6