Question

Identify the correct statements:

1. Detrivores perform fragmentation.
2. The humus is further degraded by some microbes during mineralization.
3. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
4. The detritus food chain begins with living organisms.
5. Earthworms break down detritus into smaller particles by a process called catabolism.

Choose the correct answer from the option given below:

पर्याय

• B, C, D only

• C, D, E only

• D, E, A only

• A, B, C only

Answer 1

A, B, C only

Explanation:

Detritivores fragment detritus into smaller particles. Humus is highly resistant to microbial action and hence decomposes very slowly. Certain microbes degrade humus and release inorganic nutrients through mineralisation. Water-soluble inorganic nutrients are precipitated as unavailable salts as they descend into the soil horizon through leaching. The detritus food chain begins with dead organisms, not living organisms. Earthworms break down detritus into smaller particles by the process of fragmentation and not catabolism.