2. Questions Bank
  3. 9th Class
  4. Science
  5. Natural resources

9th Class Science Natural resources Question Bank Natural Resources

  • question_answer
    ____ is present in the highest concentration in sea water.

    A) Sodium fluoride

    B) Magnesium sulphate

    C) Sodium chloride

    D) Calcium carbonate

    E) None of these

    Correct Answer: D

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