Which naturally occurring odorless, colorless gas seeps into homes and is the second-leading cause of lung cancer?

Name: Which naturally occurring odorless, colorless gas seeps into homes and is the second-leading cause of lung cancer?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Radon is a naturally occurring gas that seeps into homes through foundation cracks, and it is the second-leading cause of lung cancer. Asbestos, lead, and mold can also be harmful but do not specifically cause lung cancer.

Which Naturally Occurring Odorless, Colorless Gas Seeps into Homes and Is