ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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through corrosion
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through photosynthesis
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through litterfall
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by decomposing it
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by human activities only
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Detailed explanation-1: -In aerobic decomposition, living organisms, which use oxygen, feed upon the organic matter. They use the nitrogen, phosphorus, some of the carbon, and other required nutrients. Much of the carbon serves as a source of energy for the organisms and is burned up and respired as carbon dioxide (C02).
Detailed explanation-2: -Microorganisms digest up to 90% of the organic carbon that enters a soil in organic residues. In doing so, they respire the carbon back into the atmosphere as carbon dioxide.
Detailed explanation-3: -Mineralisation is the biological process where organic compounds in organic matter are chemically converted by the microorganisms in soil to simpler organic compounds, other organic compounds or mineralised nutrients. Bacteria and fungi are responsible for most of the mineralisation of organic matter in soils.
Detailed explanation-4: -How is Carbon Sequestered in Soils? Through the process of photosynthesis, plants assimilate carbon and return some of it to the atmosphere through respiration. The carbon that remains as plant tissue is then consumed by animals or added to the soil as litter when plants die and decompose.
Detailed explanation-5: -glucose + oxygen