NEET UG BIOLOGY MCQ: ECO SYSTEM

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Assertion: Phosphorus cycle does not involve microorganisms.
Reason: Microorganisms are mainly associated with nitrogen cycle.

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Correct option: B

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

Option B is correct because both the assertion and the reason are true, but the reason doesn't explain the assertion. While microorganisms are heavily involved in the nitrogen cycle, they also play a role in the phosphorus cycle.

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