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Which one of the following processes during decomposition is correctly described?
A
Leaching – Water soluble inorganic nutrients rise to the top layers of soil
B
Fragmentation – Carried out by organisms such as earthworm
C
Humification – Leads to the accumulation of a dark coloured substance humus which undergoes microbial action at a very fast rate
D
Catabolism – Last step in the decomposition under fully anaerobic condition
Detailed Solution
Detritivores such as earthworms break detritus into smaller particles; this is fragmentation.
In leaching, nutrients go down into the soil; humus is degraded very slowly; catabolism is carried out by bacterial and fungal enzymes.
In leaching, nutrients go down into the soil; humus is degraded very slowly; catabolism is carried out by bacterial and fungal enzymes.