Assertion :Plants absorb sulphur in the form of sulphate ions. Reason: Sulphur bacteria are required for the formation of sulphate.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
The form of sulphur absorbable is sulphate ions so the sulphur bacteria "fix" sulphur by converting it to sulphate ions which can be absorbed by the plant. This is a part of the sulphur cycle.
The correct answer is 'Both assertion and reason are correct and the reason is the correct explanation for assertion'.

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