Why Smoking a Pack of Cigarettes a Day Significantly Increases the Risk of Contracting Cancer

10. Which of the following is most likely to increase the likelihood of contracting cancer?a. Drinking a glass of wine a dayb. Smoking a pack of cigarettes a dayc. Kissing a person who has cancerd. Breathing the sawdust from a crown gall tumor

b. Smoking a pack of cigarettes a day

Option B – Smoking a pack of cigarettes a day is most likely to increase the likelihood of contracting cancer.

Cancer is a disease caused by the uncontrolled growth of abnormal cells in the body. Although there are numerous factors that can contribute to the development of cancer, smoking tobacco is one of the most significant risk factors.

Cigarette smoke contains more than 70 known carcinogens (cancer-causing agents) that can damage DNA and other genetic material in cells, leading to mutations and the development of cancer. Smoking has been associated with a higher risk of several types of cancer, including lung, throat, mouth, bladder, pancreatic, kidney, and cervix cancer.

Drinking a glass of wine a day (Option A) may increase the risk of certain types of cancer, such as breast cancer, but it also has some health benefits, such as reducing the risk of heart disease. Kissing a person who has cancer (Option C) is not likely to increase the likelihood of contracting cancer, as cancer is not contagious. Breathing the sawdust from a crown gall tumor (Option D) may not directly cause cancer, but exposure to certain chemicals and toxins in the environment can increase the risk of cancer over time.

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