9th Class Science Why do we fall Ill?

  • question_answer 22)
      Which of the following has long term effect on the health of an individual? (a) Common cold             (b) Chickenpox                  (c) Chewing tobacco        (d) Stress

    Answer:

      (c) Chewing tobacco may cause long term effects on an individuals. It increases the risk tor leukoplakia which is a precursor to oral cancer. Chewing tobacco has been known to cause cancer, particularly of mouth and throat.


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