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Curiosity(25th issue)

Mayukh Dutta, Class VII, Sri Sai Vidya Vihar, Golaghat Question: Why does an apple turn brown when we cut it? Answer: The cut apples turn brown due to a chemical reaction called enzymatic browning. Apples contain an enzyme called polyphenol oxidase (PPO) and some organic compounds called polyphenols. Under normal conditions, the

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