Property & Ownership第 98 / 120 题

A naturally occurring radioactive gas that can seep into homes and is a common environmental concern in real estate is:

a.Asbestos
b.Formaldehyde
c.Radon
d.Lead

解析

Radon is an odorless, radioactive gas that can accumulate in homes and poses a health risk, and testing is common in some regions. Mitigation systems can reduce indoor radon levels.

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