Biogeochemical Cycles

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What is a biogeochemical cycle?

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A biogeochemical cycle is the movement of elements and compounds through living organisms and the physical environment, involving biological, geological, and chemical processes.

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What is the phosphorus cycle?

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The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere, primarily through weathering of rocks, absorption by plants, and consumption by animals.

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How is carbon released into the atmosphere?

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Carbon is released into the atmosphere through processes such as combustion, respiration, and decomposition.

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What role do plants play in the carbon cycle?

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Plants absorb carbon dioxide from the atmosphere during photosynthesis, converting it into organic matter.

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What is the nitrogen cycle?

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The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, denitrification, and ammonification.

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How do animals obtain nitrogen?

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Animals obtain nitrogen by consuming plants or other animals that contain nitrogen compounds.

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What is condensation in the water cycle?

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Condensation is the process where water vapor in the air cools and turns back into liquid water, forming clouds.

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What is the role of decomposition in biogeochemical cycles?

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Decomposition breaks down dead organisms, returning nutrients to the soil and making them available for plants.

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What is the water cycle?

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The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes like evaporation, condensation, and precipitation.

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What is photosynthesis?

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Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.