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Assertion: The three steps in the decomp...

Assertion: The three steps in the decomposition (fragmentation , leaching and catabolism) operate on the detritus simultaneously
Reason: Humification and mineralisation occurs during decomposition in the soil.

A

If both assertion and reason are true and the reason is a correct explanation of the assertion.

B

If both assertion and reason are true but reason is not a correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
`*` The three steps in the decomposition (fragmentation, leaching and catabolism ) operate on the detritus simultaneously .
`*` Humification and mineralisation occurs during decomposition in the soil.
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Explore conceptually related problems

Write about 'humification ' and the 'mineralisation' occurring during the process of decomposition.

Consider the following statements. A. The movement of energy is unidirectional from the higher trophic level towards the lower trophic level. B. Detritivores break down detritus into smaller particles bya a process is called fragmentation. C. Humification and mineralisation occur during decomposition in the soil. D. Decomposition is largely an oxygen-releasing process. Of the above statements:

Describe the process of decomposition of detritus under the following heads : Fragmentation, leaching. catabolism , humification and mineralization.

How many of the following statements are incorrect ? (i) Decomposition is largely an anaerobic process . (ii) Fragmentation , leaching , and catabolism occur simultaneously on detritus. (iii) The vertical distribution of different species occupying different levels is called stratification . (iv) The pond is a deep water body . (v) The rate of decomposition is controlled by the chemical composition of detritus and climatic factors.

Identify the correct sequence of steps involved in the process of decomposition. (a) Humification (b) Catalbolism (c ) Fragmentation of detritus (d) Leaching (e) Mineralization

(a) Name the type of detritus that decomposes faster. List any two factors that enhance the rate of decomposition. (b) Write the different steps taken in humification and memorisation during the process of decomposition.

select the correct set of steps involved in the process of decomposition. (a) stratification, (b) catabolism, (c) fragmentation, (d) mineralization, (e) leaching

Assertion The rate of decomposition of detritus is reduced in the regions of high altitude. Reason It happens due to immobilisation of nutrients.

Assertion: Temperature and soil moisture are the important climatic factors that regulate the process of decomposition. Reason: Warm and moist enviorement favours decomposition whereas low temperature and ananerobiosis inhibit decomposition.

A2Z-ECOSYSTEM-Section B: Assertion-reasoning Questions
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