During the decomposition of detritus, the correct chronological sequence of steps involved is:
1. Fragmentation → Leaching → Catabolism
2. Catabolism → Leaching → Fragmentation
3. Leaching  → Fragmentation → Catabolism
4. There is no sequence as all steps occur simultaneously
Subtopic:  Decomposition |
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Humification results in the formation of ---- substance
1. Colloidal, Basic
2. Acidic, Dark coloured
3. Amorphous, Light coloured
4. Light-coloured, Colloidal
Subtopic:  Decomposition |
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Read the following statements and select the correct option.
Statement A: Detritus is raw material for decomposition.
Statement B: Detritus food chain does not involve autotrophs.
1.  Only statement A is correct
2.  Only statement B is correct
3.  Both statements A and B are correct
4.  Both statements A and B are incorrect
Subtopic:  Decomposition |
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During decomposition, degradation of detritus into simpler inorganic substances is called:
1. Catabolism
2. Leaching
3. Chelation
4. Fragmentation
Subtopic:  Decomposition |
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Which of the following is not correct regarding the decomposition of wastes? 

(a) Low temperature inhibits decomposition
(b) Warm and moist environment favors the process 
(c) The process is anaerobic 
(d) It is slower if detritus is rich in proteins and carbohydrates 
(e) Detritus is degraded into simpler inorganic substance by fungal and bacterial enzymes 

   
Choose the correct answer from the options given below: 

1. (b) and (c) only  2. (c), (a) and (d) only 
3. (c) and (d) only 4. (c), (d) and (e) only
Subtopic:  Decomposition |
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