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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What role does photosynthesis play in the carbon cycle?

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Photosynthesis removes carbon dioxide (CO2) from the atmosphere and converts it into organic matter, such as glucose, using sunlight.

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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 organic matter into energy, releasing carbon dioxide (CO2) back into the atmosphere.

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How do fossil fuels relate to the carbon cycle?

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Fossil fuels are formed from the remains of ancient organisms and store carbon. When burned, they release CO2 into the atmosphere, contributing to the carbon cycle.

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What is the significance of the ocean in the carbon cycle?

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The ocean acts as a major carbon sink, absorbing CO2 from the atmosphere and storing carbon in sediments for millions of years.

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What is decomposition in the carbon cycle?

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Decomposition is the process by which dead organic matter is broken down by microorganisms, releasing carbon back into the soil and atmosphere as CO2.

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What is the biological pump?

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The biological pump is a process in the ocean where marine organisms, such as phytoplankton, absorb CO2 during photosynthesis and transfer it to deeper waters when they die.

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What is sedimentation in the carbon cycle?

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Sedimentation is the process where carbon-containing sediments accumulate on the ocean floor, effectively storing carbon for long periods.

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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 CO2, which is released during combustion and respiration.

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How does deforestation impact the carbon cycle?

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Deforestation reduces the number of trees available to absorb CO2 through photosynthesis, leading to increased levels of CO2 in the atmosphere.