EnvironmentalIntermediateNorth Carolina Exam

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

AWindows and doors
BCracks and gaps in the foundationCorrect
CThe water supply only, in most cases
DRoof vents

Why Cracks and gaps in the foundation Is Correct

Answer B: Cracks and gaps in the foundation

Radon enters buildings primarily through cracks, gaps, and openings in the foundation, walls, and floors where the building contacts the soil.

Exam Tip: Environmental

Environmental questions test knowledge of hazards like asbestos, lead-based paint, radon, and mold. Know the disclosure requirements and when a professional inspection is required. CERCLA liability is strict, joint, and several.

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