- 1(current)
Q. No.Assertion(A): Bacteria can utilize some of the components of sewage.
Reason(R): Bacteria can multiply using organic substances present in sewage as substrates.
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): Bacteria can multiply using organic substances present in sewage as substrates.
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: Â Water Pollution |
 80%
From NCERT
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Assertion(A): When the water flows through the marshes, it gets purified naturally.
Reason(R): Plants, algae, fungi, and bacteria were seeded into these marshes which neutralize, absorb and assimilate the pollutants.
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): Plants, algae, fungi, and bacteria were seeded into these marshes which neutralize, absorb and assimilate the pollutants.
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: Â Water Pollution |
 88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
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