Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms. It involves various processes such as photosynthesis, respiration, decay, and combustion.

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Why is carbon important for life?

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Carbon is the central element to all living organisms, forming the backbone of organic molecules such as proteins, carbohydrates, lipids, and nucleic acids.

Front

What is photosynthesis?

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Photosynthesis is the process by which green plants, algae, and some bacteria convert carbon dioxide and sunlight into glucose and oxygen.

Front

What is respiration in the context of the carbon cycle?

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Respiration is the process by which animals and plants take in oxygen and release carbon dioxide as they convert glucose into energy.

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What happens during decay in the carbon cycle?

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During decay, dead plants and animals are broken down by decomposers, releasing carbon back into the atmosphere as carbon dioxide.

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What is combustion?

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Combustion is the process of burning fossil fuels or biomass, which releases carbon dioxide into the atmosphere.

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What are carbon sinks?

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Carbon sinks are natural systems, such as forests and oceans, that absorb more carbon dioxide from the atmosphere than they release.

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What are carbon sources?

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Carbon sources are processes or activities that release carbon dioxide into the atmosphere, such as burning fossil fuels and deforestation.

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How do oceans play a role in the carbon cycle?

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Oceans absorb a significant amount of carbon dioxide from the atmosphere, acting as a carbon sink and helping to regulate global climate.

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What is the role of plants in the carbon cycle?

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Plants absorb carbon dioxide during photosynthesis, converting it into organic matter and releasing oxygen, thus playing a crucial role in the carbon cycle.