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    Question

    The mineral source of plant nutrient Boron whose

    deficiency leads to pollen sterility is 
    A Apatite Correct Answer Incorrect Answer
    B Biotite Correct Answer Incorrect Answer
    C Dolomite Correct Answer Incorrect Answer
    D Tourmaline Correct Answer Incorrect Answer

    Solution

    Tourmaline : Boron Apatite: Phosphorus Biotite: Potassium Dolomite: Magnesium

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