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What is the carbon cycle?

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The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

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How do animals obtain carbon?

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Animals obtain carbon primarily by eating plants or other animals that have consumed plants.

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What role do decomposers play in the carbon cycle?

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Decomposers break down dead organic matter, returning carbon to the soil and releasing carbon dioxide back into the atmosphere.

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What is photosynthesis?

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Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

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How does carbon dioxide enter the food chain?

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Carbon dioxide enters the food chain through photosynthesis, where plants convert it into organic compounds.

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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 plants absorb nitrogen?

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Plants absorb nitrogen in the form of nitrogen compounds, such as nitrates and ammonium, from the soil.

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What is the role of nitrogen-fixing bacteria?

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Nitrogen-fixing bacteria convert atmospheric nitrogen into ammonia, which can then be used by plants.

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What is decomposition?

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Decomposition is the process by which organic substances are broken down into simpler organic or inorganic matter, returning nutrients to the soil.

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What is the significance of the water cycle?

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The water cycle is crucial for maintaining life on Earth, as it regulates climate, supports plant growth, and replenishes freshwater resources.