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    Question

    Which is a commonly used biofertilizer in organic

    farming?
    A Ammonium nitrate Correct Answer Incorrect Answer
    B Potassium chloride Correct Answer Incorrect Answer
    C Rhizobium Correct Answer Incorrect Answer
    D Zinc sulfate Correct Answer Incorrect Answer

    Solution

    Rhizobium bacteria help in nitrogen fixation and are commonly used as biofertilizers in legume-based organic systems.

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