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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 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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Why is carbon essential for life?

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

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How do humans contribute to the increase of carbon in the atmosphere?

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Humans increase atmospheric carbon by burning fossil fuels (coal, oil), deforestation, and industrial processes, which release carbon dioxide into the atmosphere.

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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, using chlorophyll.

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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 is the significance of carbon dioxide in the atmosphere?

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Carbon dioxide is a greenhouse gas that helps trap heat in the atmosphere, keeping the Earth warm enough to support life.

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What is combustion?

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Combustion is a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light, and producing carbon dioxide and water.

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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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What are fossil fuels?

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Fossil fuels are natural substances formed from the remains of ancient plants and animals, primarily consisting of carbon, and are used as energy sources.