Final answer:
The factors associated with lung cancer include asbestos exposure, cigarette smoking, and radon exposure, all of which significantly raise the risk of developing the disease.
Step-by-step explanation:
The factors associated with lung cancer are many, but the key ones include exposure to asbestos, cigarette smoking, and radon exposure. These elements have been identified as major contributors to the disease. Cigarette smoke is particularly harmful because it contains numerous cancer-causing chemicals, making smoking responsible for about 85 percent of lung cancer cases. Combined with other risk factors, such as radon or asbestos exposure, smoking further elevates the risk of lung cancer. Radon, a radioactive gas emanating from underground rocks, becomes dangerous particularly when combined with tobacco smoke due to the synergistic effects on the lungs. Environmental air pollutants and a family history of lung cancer also increase one's risk.