Which one fo the following processes during decomposition s…

Biology Ecosystem All Topic Question For Revision Test Single Correct MCQ

Published on: August 14, 2026

Which one fo the following processes during decomposition s correctly described?

Leaching – Water soluble inorganic nutrients rise to the top layers of soil

Fragmentation – Carried out by organisms such as earthworms

Humification – Leads to the accumulation of a dark coloured substances humus which undergoes microbial action at a very fast rate

Catabolism – Last step in the decomposition under fully anaerobic condition

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The correct answer is:

Fragmentation is the breaking of detritus into smaller particles by detritivores like earthworms. Other options are incorrect descriptions of decomposition processes.

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