Final answer:
Drinking alcohol, smoking tobacco, and singing can all contribute to the risk of vocal cancer.
Step-by-step explanation:
Drinking alcohol, smoking tobacco, and singing can all contribute to the risk of vocal cancer. Alcohol increases the risk of mouth, throat, and larynx cancer, while smoking is a major cause of lung cancer and can also increase the risk of larynx, mouth, throat, and bladder cancer. Singing puts strain on the vocal cords and can lead to vocal cord damage, which may increase the risk of vocal cancer.