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  3. 9th Class
  4. Science
  5. Natural resources

9th Class Science Natural resources Question Bank Natural Resources

  • question_answer
    The given cycle represents circulation of nitrogen in the environment. Identify X, Y and Z in the cycle and select the correct option.

    A) X-Denitrification, Y-Ammonification, Z - Nitrogen fixation

    B) X - Nitrate, Y - Denitrification, Z - Ammonification

    C) X - Nitrate,   Y - Nitrogen fixation, Z - Ammonification

    D) X-Nitrification, Y-Ammonification, Z - Denitrification

    Correct Answer: B

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