Lung cancer is one of the diseases linked to smoking - HSC - SSCE Biology - Question 3 - 2005 - Paper 1

Lung cancer is primarily associated with smoking, which categorizes it as an environmental disease. Environmental diseases are caused by external factors, including lifestyle choices like smoking, pollution, and exposure to harmful substances. In this context, lung cancer arises from the environmental exposure of tobacco smoke, making option (A) the correct answer.