i) Both A and R are true and R is correct explanation of the assertion.
ii) Both A and R are true but R is not the correct explanation of the
assertion.
iii) A is true but R is false.
iv) A is false but R is true
Assertion- packing stores food in an airtight bag or bottle
Reason- the vacuum environment deprives bacteria of the oxygen needed for the
survival
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(i) both a and r are true and r is the correct explanation of a
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