Question

Which one best explains how cigarettes cause lung cancers?

a. Smoking cigarettes transfers virus to the lungs that cause cancer

b. Cigarette smoking deposits tar in lungs which decreases lung capacity and therefore

cancer

c. Cigarette smoke contains carbon monoxide that accumulates in lungs to causes cancer

d. Cigarette smoke causes cells to mutate which increases their risk of becoming cancerous​

Answer 1

Answer:

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Explanation:

While smoking isn’t the only cause of lung cancer, you are at much greater risk of lung cancer if you are a current or past smoker. When you smoke, the cancer-causing substances in cigarettes, called carcinogens, begin to change the tissue in your lungs almost immediately. Over time, the cells become too damaged and can eventually develop into cancerous cells.

Answer 2

Answer:

Explanation:

option (d)

The risk of lung cancer increases with the years of smoking