Which of the following is responsible for slow pace of decomposition?

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High concentration of lignin and chitin in detritus

Presence of aerobic soil microbes

High concentration of sugars in detritus

Warm and moist environment

answer is A.

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Detailed Solution

The rate of decomposition is slow if it contains lignin, chitin, tannins (phenolics) and cellulose. The rate of decomposition is controlled by chemical composition of detritus and climatic factors. In a particular climatic condition, decomposition rate is slower if detritus is rich in lignin and chitin, and quicker, if detritus is rich in nitrogen and water-soluble substances like sugars.

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