Question

The different steps involved in the process of decomposition of detritus are

• A. Fragmentation
• B. Leaching and Catabolism
• C. Humification and mineralization
• D. All of the above

Answer 1

The correct option is D All of the above

Decomposition is the process in which complex organic matter is broken down into inorganic raw materials with the help of decomposer. There are different steps involved in the process of decomposition of detritus like:

(1) Fragmentation: In this, complex organic matter is fragmented into smaller pieces by earthworms.

(2) Leaching: In this, water soluble nutrients penetrates into the soil layers and get locked as unavailable salts.

(3) Catabolism: In this, bacteria and fungi degrade detritus through various enzymes.

(4) Humification: This step results in the formation of a dark-coloured colloidal substance called humus. It is a reservoir of nutrients for plants.

(5) Mineralization: The humus is further degraded by the action of microbes and inorganic nutrients are released into the soil by the process of mineralization.

Thus, the correct answer is 'All of the above.'