NEET 2008 · Class 12

Ecosystem

The slow rate of decomposition of fallen logs in nature is due to their poor nitrogen content.

  1. (A)anaerobic environment around them
  2. (B)low cellulose content
  3. (C)low moisture content
  4. (D)poor nitrogen content

The NCERT line that answers it

Verbatim line

In a particular climatic condition, decomposition rate is slower if detritus is rich in lignin and chitin, and quicker, if detritus is rich in nitrogen and water-soluble substances like sugars.

Chapter
Ecosystem
Section
12.3 DECOMPOSITION
Page
3
Words matched
30 of 30

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that decomposition is slower when detritus is poor in nitrogen, directly matching the MCQ's correct answer about fallen logs decomposing slowly due to poor nitrogen content.

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