Question

Riya watched her grandmother making mango pickle after she bottle the pickle her grandmother pour oil on the top of the pickle before closing the lid Riya wanted to know why oil was poured. Can you help her understand why

Answer 1

the oil was poured to prevent the presence of bacteria because oil is not a suitable environment for the survival of bacteria and the pickle will last long

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Answer 2

Riya's grandmother add oil to Pickles to prevent the attack of microbes