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STD 12 - 7. human health and disease — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 7. human health and disease1 Mark
MCQ
Cancer can be caused by the use of
  • ✓
    Tobacco
  • B
    Alcohol
  • C
    Opium
  • D
    $LSD$
✓

Answer

Correct option: A.
Tobacco
a

(a) Benzpyrene present in tobacco smoke is carcinogenic. About $95\%$ victims of lung cancer are due to smoking. Revers smoking cause oral cancer. Bidi smoking cause cancer of tongue, Pharynx, larynx, tonsils and esophagus. Tobacco chewing leads to oral cancer.

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