<prompt> Reverse smoking causesCarcinoma lipCarcinoma hard palateCarcinoma soft palateCarcinoma lung  <response>: Ans. b Carcinoma hard palateRef: K. Park 21sted. 357-58 In eastern coastal regions of Andhra Pradesh epidermoid carcinoma of hard palate is most common. It is linked with habit of reverse smoking of cigar chutta, i.e., smoking with burning end inside the mouth. 