AP BIOLOGY

Detailed explanation-1: -Smoking causes about 20% of all cancers and about 30% of all cancer deaths in the United States. About 80% of lung cancers, as well as about 80% of all lung cancer deaths, are due to smoking.

Detailed explanation-2: -Tobacco use, particularly cigarette smoking, is the single most preventable cause of death in the United States. Cigarette smoking alone is directly responsible for approximately 30 percent of all cancer deaths annually in the United States .

Detailed explanation-3: -Leading risk factors for preventable cancers are smoking, getting too much ultraviolet (UV) radiation from the sun or tanning beds, being overweight or having obesity, and drinking too much alcohol.

Detailed explanation-4: -Tobacco use causes many types of cancer, including cancer of the lung, larynx (voice box), mouth, esophagus, throat, bladder, kidney, liver, stomach, pancreas, colon and rectum, and cervix, as well as acute myeloid leukemia.

Detailed explanation-5: -Tobacco use is the leading preventable cause of cancer and cancer deaths. It causes more than lung cancer-based on current evidence, it can cause cancers of the mouth and throat, voice box, esophagus, stomach, kidney, pancreas, liver, bladder, cervix, colon and rectum, and a type of leukemia (acute myeloid leukemia).