Biology
General
Easy

Question

Cancer can be caused by the use of

  1. Tobacco    
  2. Alcohol    
  3. Opium    
  4. LSD    

The correct answer is: Tobacco


    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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