Which of the following is the leading cause of lung cancer among nonsmokers?
a. Secondhand smoke
b. Living near a nuclear power plant
c. Exposure to pesticides
d. Radon gas
ESSAYBID ANSWER
ANS: D
Radon exposure is the leading cause of lung cancer among nonsmokers in the United States. It is estimated that radon causes an estimated 21,000 lung cancer deaths every year.
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