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    Question

    Which one of the following is an example of symbiotic

    nitrogen fixing bacteria?
    A Rhizobium Correct Answer Incorrect Answer
    B Cyanobacteria Correct Answer Incorrect Answer
    C Azotobacter Correct Answer Incorrect Answer
    D Clostridium Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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