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    Question

    Tillage ______ thermal

    conductivity
    A Increases Correct Answer Incorrect Answer
    B decreases Correct Answer Incorrect Answer
    C No effect Correct Answer Incorrect Answer
    D Both b & c Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    Tillage loosens soil surface resulting in decrease in thermal conductivity and heat capacity

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