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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, decomposition, and combustion.

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What role do oceans play in the carbon cycle?

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Oceans absorb carbon dioxide from the atmosphere and are home to marine organisms that use carbonic acid to form shells, thus playing a crucial role in the carbon cycle.

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What is photosynthesis?

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

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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, including animals and plants, take in oxygen and release carbon dioxide as a byproduct of converting glucose into energy.

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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 and other gases into the atmosphere.

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What is decay in the carbon cycle?

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Decay is the process by which dead organic matter is broken down by decomposers, returning carbon to the soil and atmosphere.

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Why is carbon important for the atmosphere?

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Carbon is essential for maintaining the Earth's temperature by trapping heat in the atmosphere, a phenomenon known as the greenhouse effect.

Front

What is the greenhouse effect?

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The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases, including carbon dioxide.

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How do plants contribute to the carbon cycle?

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Plants absorb carbon dioxide from the atmosphere during photosynthesis, helping to reduce atmospheric carbon levels.

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What happens to carbon during decomposition?

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During decomposition, carbon from dead organisms is released back into the soil and atmosphere, where it can be reused by plants.