When someone smokes cigarettes and drinks three alcoholic beverages a day, he or she is contributing to his or her cancer risk via?

When someone smokes cigarettes and drinks three alcoholic beverages a day, he or she is contributing to his or her cancer risk via promotion.

Researchers have discovered that the combination of tobacco and alcohol increases the risk of cancer in throat, oral cavity, esophagus and  larynx.

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.