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    Question

    O₂ requirement for Apple storage in Controlled

    Atmosphere (CA) is:
    A 2% Correct Answer Incorrect Answer
    B 3% Correct Answer Incorrect Answer
    C 5% Correct Answer Incorrect Answer
    D 7% Correct Answer Incorrect Answer

    Solution

    CA storage for apples uses 2% O₂ to slow respiration and extend shelf life, combined with elevated CO₂ (1–5%) to suppress ethylene effects.

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