Question

Which one of the following processes during decomposition is correctly described ?

• A. Fragmentation carried out by organisms such as earthworm
• B. Humification leads to the accumulation of a dark coloured substance humus which undergoes microbial action at a very fast rate
• C. Catabolism last step in the decomposition under fully anaerobic condition
• D. Leaching water soluble inorganic nutrients rise to the top layers of soil

Answer 1

The correct option is A Fragmentation carried out by organisms such as earthworm

-Detrivores(eg- Earthworms) breakdown detritus into smaller particles. this process is called fragmentation.

-Humification leads to the accumulation of dark coloured substance humus which undergoes microbial action at an extremely slow rate.

-Catabolism the third step of decomposition which occurs by fungal and bacteria action under anaerobic condition.

-By the process of leaching, water-soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts.

So, the correct answer is 'Option A'.

So the correct option is A.