New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Iron was proved to be essential for plants by:

    A E. Gris Correct Answer Incorrect Answer
    B C. Sprengel Correct Answer Incorrect Answer
    C H. J. Evans Correct Answer Incorrect Answer
    D N. I. Vavilov Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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