Cycling of Earth's Matter

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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 (food) and oxygen.

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What role does evaporation play in the water cycle?

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Evaporation adds water vapor to the atmosphere, which is essential for cloud formation and precipitation.

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NGSS.MS-ESS2-4

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What is the significance of bacteria in the nitrogen cycle?

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Bacteria fix nitrogen from the atmosphere into forms that plants can absorb and use for growth.

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What is cellular respiration?

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Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

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What are decomposers?

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Decomposers are organisms, such as bacteria and fungi, that break down dead organic matter, returning nutrients to the soil.

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What are the main components of the carbon cycle?

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The main components of the carbon cycle include photosynthesis, respiration, decomposition, and combustion.

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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 and release oxygen as a byproduct.

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NGSS.MS-LS1-6

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What is the water cycle?

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The water cycle is the continuous movement of water through evaporation, condensation, precipitation, and collection.

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NGSS.MS-ESS2-4

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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, and denitrification.

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Why are decomposers important for ecosystems?

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Decomposers recycle nutrients back into the ecosystem, making them available for plants and other organisms.

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