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    Question

    The C:N ratio of cultivated soil

    varies:
    A 4:1 to 10:1 Correct Answer Incorrect Answer
    B 8:1 to 15:1 Correct Answer Incorrect Answer
    C 2:1 to 5:1 Correct Answer Incorrect Answer
    D 20:1 to 25:1 Correct Answer Incorrect Answer

    Solution

    The carbon-to-nitrogen ratio (C:N) of cultivated soil typically varies between 8:1 to 15:1, influenced by organic matter content and decomposition rates.

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