SSC General Science & Technology Sample Paper NCERT Sample Paper-5

  • question_answer
    Which of the following mineral is essential for the preventation of dental caries?

    A)  Iron                 

    B)  copper

    C)  Fluorine                       

    D)  all of these

    Correct Answer: C

    Solution :

    [c] Fluorine maintains normal dental enamel and prevents dental caries. An excessive intake of fluorine causes fluorosis which is characterized by mottled teeth and enlarged bones.


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