Cancer can be caused by use of

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7.Human Health and Disease

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Cancer can be caused by the use of

Tobacco

Alcohol

Opium

$LSD$

Solution

(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.

Standard 12

Biology