Question

Choose the correct sequence for decomposition:

• A. Fragmentation, Catabolism, Leaching
• B. Catabolism, Leaching, Fragmentation
• C. Leaching, Catabolism, Fragmentation
• D. All three steps operate simultaneously

Answer 1

The correct option is D All three steps operate simultaneously

There are three types of processes that happen in decomposition:
Fragmentation of detritus: Detritivores (e.g. termites, earthworms) break down detritus into very small pieces.
Catabolism: Decomposers (e.g. bacteria, fungi) convert complex organic compounds into simple organic and inorganic compounds.
Leaching: The simple organic and inorganic substances pass into deeper layers of soil with the help of water.

The three processes happen simultaneously.