Final answer:
Smokers often develop cancer, which may develop into malignant tumors. Tobacco smoke contains carcinogens that increase the risk of developing cancer. Common forms of cancer related to smoking include lung cancer, as well as cancers of the kidney, larynx, mouth, and more.
Step-by-step explanation:
Smokers often develop cancer, which may develop into malignant tumors. Besides lung cancer, several other forms of cancer are also significantly more likely in smokers than non-smokers, including cancers of the kidney, larynx, mouth, lip, tongue, throat, bladder, esophagus, pancreas, and more. Tobacco smoke contains dozens of chemicals that have been proven to be carcinogens or causes of cancer, including benzopyrene, acrolein, and nitrosamines.