Assertion :Deficiency symptoms appear when the availability of the essential nutrients falls below the critical concentration Reason: Critical concentration is that limited concentration of the essential element below which growth of the plant is reduced.

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
This is the essential nutrient element required by plants and The element is said to be deficient when present below the critical concentration. The deficiency symptoms tend to appear first in the young tissues.
So, the correct option is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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