A) reduction in oxygen transport
B) increase in blood pressure
C) cancer
D) retardation of growth of foetus
Correct Answer: C
Solution :
Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause cancer. Benzopyrene present in tobacco smoke is carcinogenic. About 95% victims of lung cancer are due to smoking. Reverse smoking causes oral cancer. In reverse smoking, the burning end of the ciear is keot in the mouth. It is quite common in villages of Andhra Pradesh. Bidi smoking causes cancer of tongue, pharynx, larynx, tonsils and oesophagus. Lip cancer is caused by cigar and pipes. Tobacco chewing leads to oral cancer.
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