Nitrogen & Carbon Cycle

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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 atmospheric nitrogen, organic nitrogen, and inorganic nitrogen, through processes like fixation, nitrification, and denitrification.

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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 move through an ecosystem?

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Carbon moves through an ecosystem primarily through processes such as photosynthesis, respiration, decomposition, and combustion.

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What role do decomposers play in the Carbon and Nitrogen cycles?

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Decomposers break down dead organic matter, returning carbon and nitrogen to the soil, which can then be used by plants.

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What is the primary source of Carbon in living organisms?

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The primary source of Carbon in living organisms is carbon dioxide (CO2) from the atmosphere, which is absorbed during photosynthesis.

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What is the significance of the Carbon Cycle?

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The Carbon Cycle is significant because it regulates Earth's climate, supports life by providing essential nutrients, and helps in the formation of fossil fuels.

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What is Nitrogen Fixation?

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Nitrogen Fixation is the process by which atmospheric nitrogen (N2) is converted into ammonia (NH3) or related compounds in soil, making nitrogen available to plants.

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What are the main forms of Nitrogen in the soil?

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The main forms of nitrogen in the soil include ammonium (NH4+), nitrate (NO3-), and organic nitrogen.

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How do plants absorb Nitrogen?

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Plants absorb nitrogen primarily in the form of nitrate (NO3-) or ammonium (NH4+) through their roots.

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What is the role of bacteria in the Nitrogen Cycle?

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Bacteria play crucial roles in the Nitrogen Cycle, including nitrogen fixation, nitrification, and denitrification, facilitating the conversion of nitrogen into forms usable by plants.