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    Question

    The percentage of Phosphorus Pentoxide present in night

    soil is:
    A 5.5 Correct Answer Incorrect Answer
    B 4 Correct Answer Incorrect Answer
    C 3.4 Correct Answer Incorrect Answer
    D 2 Correct Answer Incorrect Answer

    Solution

    Night soil is rich in nitrogen, phosphorus, and potassium, containing on average 5.5 percent N, 4.0 percent Pâ‚‚O_5, and 2.0 percent Kâ‚‚O.

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