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Biology Ecosystem Decomposition Single Correct MCQ
Published on: August 21, 2026

Decomposition is slow when detritus is rich in

A
Nitrogen and water soluble
B
Lipid and fat
C
Protein and humus
D
Lignin and chitin

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The correct answer is:
D

Decomposition is slow when detritus is rich in lignin and chitin, because these are complex, resistant polymers that are hard to break down.Nitrogen-rich or water-soluble detritus decomposes faster, unlike lignin and chitin.

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