Question

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Answer 1

Answer:

the bacterias settle on the layer of fruits and

vegetables

Answer 2

We know that fruits and vegetables like apples, bananas, brinjals and potatoes are a rich source of iron, and we also know that air is a mixture of various gases like oxygen , carbon dioxide , etc. When the oxygen in the air get in contact with the iron in the fruits or vegetables,it turns it brown forming iron oxide.

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