Environmental
Radon is a concern in real estate primarily because:
AIt causes structural damage to foundations
BIt contaminates drinking water with heavy metals
CIt is a naturally occurring radioactive gas that can accumulate in buildings and cause lung cancer✓ Correct
DIt is visible and has a strong odor, making it easy to detect
Explanation
Radon is a naturally occurring radioactive gas produced by the decay of uranium in soil and rock. It can seep into buildings through foundation cracks and accumulate to dangerous levels. It is odorless, colorless, and tasteless, and is the second leading cause of lung cancer in the U.S. after smoking.
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