- 1(current)
Q. No.Select the incorrectly matched pair from the following options:
| 1. | Fragmentation - breakdown of detritus into smaller particles by detrivores |
| 2. | Leaching - water soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts |
| 3. | Catabolism - bacterial and fungal enzymes degrade simple inorganic substances into detritus |
| 4. | Humification - accumulation of a dark coloured amorphous substance that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate |
Subtopic: Decomposition |
77%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
| Statement I: | Decomposition is a process in which the detritus is degraded into simpler substances by microbes. |
| Statement II: | Decomposition is faster if the detritus is rich in lignin and chitin. |
In light of the above statements, choose the correct answer from the options given below:
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
Subtopic: Decomposition |
77%
Level 2: 60%+
NEET - 2022
Hints
Identify the correct set of statements with regard to the properties of humus.
| (a) | Highly resistant to microbial action |
| (b) | Dark-colored amorphous substance |
| (c) | End product of detritus food chain |
| (d) | Reservoir of nutrients |
| (e) | Undergoes decomposition very fast |
Choose the correct answer from the options given below:
1. (a), (b), and (d) only
2. (a),(b) and (e) only
3. (a) and (b) only
4. (b), (c), and (a)
Subtopic: Decomposition |
83%
Level 1: 80%+
NEET - 2022
Hints
Assertion(A): Earthworms help in the breakdown of complex organic matter as well as in the loosening of the soil.
Reason(R): Earthworms being referred to as the farmer’s ‘friend’.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Earthworms being referred to as the farmer’s ‘friend’.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Decomposition |
58%
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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