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:

Explanation:

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

Answer 2

Chemicals, including cancer-causing compounds, are present in the particles (carcinogens) of cigarettes.

Tar is a brownish-sticky substance that stains teeth, fingernails, and lung tissue.

Carbon monoxide is a highly toxic gas.

It has no odour or colour and, in big dosages, quickly kills because it depletes the blood's oxygen supply.

Hence, Cigarette smoke contains carbon monoxide, which builds up in the lungs and causes cancer.

Hence, option C is correct.

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