Cut surface of fruits often become dark due to

Options :
  1. dirty knife
  2. oxidation of iron compounds
  3. oxidation of tannic acid assisted by traces of iron from knife
  4. none of the above
Answer and Explanation :-

Answer: Option 3


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Victory, is like a boxer that hangs his gloves, after the consecutive losses sometimes walking away is what builds character, than the actual fight. As humble fruit on a tree that falls to the ground and rots, never finding appreciation in the taste of mouths.
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