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Topic: Productivity and decomposition· Ecology and Environment

Identify the correct statements :A. Detrivores perform fragmentation.B. The humus is further degraded by some microbes during mineralization.C. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.…

Identify the correct statements :

A. Detrivores perform fragmentation.

B. The humus is further degraded by some microbes during mineralization.

C. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.

D. The detritus food chain begins with living organisms.

E. Earthworms break down detritus into smaller particles by a process called catabolism.

Choose the correct answer from the options given below :

1. D, E, A only

2. A, B, C only

3. B, C, D only

4. C, D, E only

1 answer

Best answer

Answer: 2. A, B, C only

Key idea: Check each statement on decomposition.

  • A is true: detritivores break detritus into smaller pieces (fragmentation).
  • B is true: humus is slowly degraded by microbes (mineralisation).
  • C is true: soluble inorganic nutrients percolate down and get precipitated as unavailable salts (leaching).
  • D is false: the detritus food chain begins with dead organic matter.
  • E is false: earthworms carry out fragmentation, not catabolism (catabolism is by enzymes).

A, B, C only. Option 2.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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