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Question
Assertion (A): Decomposition process is slower if detritus is rich in lignin and cutin.
Reason (R): Decomposition is largely an oxygen requiring process.
Options
Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true, but (R) is not the correct explanation of (A)
(A) is true, but (R) is false
(A) is false, but (R) is true
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Solution
Both (A) and (R) are true, but (R) is not the correct explanation of (A)
Explanation:
Decomposition is the conversion of organic material into basic inorganic material. The rate of decomposition changes under the same environmental conditions because detritus composition fluctuates. The decomposition rate is slow if the waste material contains a lot of lignin and cutin.
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1 indicates lignin content, 2 indicates chitin, 3 indicates nitrogen content, and 4 indicates sugar content
Identify the correct statements:
- Detrivores perform fragmentation.
- The humus is further degraded by some microbes during mineralization.
- Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
- The detritus food chain begins with living organisms.
- Earthworms break down detritus into smaller particles by a process called catabolism.
Choose the correct answer from the option given below:
