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    Question

    The root growth is drastically reduced when Oxygen

    Diffusion Rate (ODR) is decreases to about
    A 20 x 10-8 g/cm┬▓ /minute Correct Answer Incorrect Answer
    B 30 x 10-8 g/cm┬▓ /minute Correct Answer Incorrect Answer
    C 40 x 10-8 g/cm┬▓ /minute Correct Answer Incorrect Answer
    D 50 x 10-8 g/cm┬▓ /minute Correct Answer Incorrect Answer

    Solution

    when the ODR decreases to approximately 20 x 10-8 g/cm┬▓ /minute, the root growth is drastically reduced.

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