Select the correct option.

Assertion : When the crop is changed during crop rotation, the weeds associated with it usually disappear.

Reason : The weeds are very choosy about the crop with which they grow.

Both assertion and reason are correct and reason is the correct explanation of assertion.

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Both assertion and reason are correct, but reason is not the correct explanation of assertion.

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Assertion is correct but reason is incorrect.

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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 of assertion.
$∙$ During crop rotation, two or more different varieties of crops are grown in the same piece of land in sequenced seasons.
$∙$ The weeds that grow along with one plant in the first season will disappear in the next season as they cannot derive the same nutrients that they get from the previous crop.

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Select the correct option. Assertion : When the crop is changed during crop rotation, the weeds associated with it usually disappear. Reason : The weeds are very choosy about the crop with which they grow.

Select the correct option.

Assertion : When the crop is changed during crop rotation, the weeds associated with it usually disappear.

Reason : The weeds are very choosy about the crop with which they grow.