Environmental

Radon is a naturally occurring radioactive gas that enters buildings primarily through:

AWater pipes and plumbing
BCracks and openings in foundations from the soil below✓ Correct
CExterior wall insulation
DHVAC systems only

Explanation

Radon seeps into buildings through cracks and openings in the foundation from the underlying soil. Nevada has areas with elevated radon levels, and testing is recommended for buyers concerned about radon exposure.

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