Environmental
Radon is a naturally occurring radioactive gas that enters buildings from:
AOld lead-based paint deterioration
BThe breakdown of uranium in soil and rock beneath the building✓ Correct
CAsbestos-containing insulation
DUnderground storage tanks
Explanation
Radon is a colorless, odorless radioactive gas produced by the natural decay of uranium in soil, rock, and water. It can accumulate to dangerous levels in buildings, particularly basements.
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Key Terms to Know
Depreciation
A reduction in the value of an improvement (building) over time due to physical deterioration, functional obsolescence, or external factors.
ZoningLocal government regulations that control land use by dividing areas into zones specifying permitted uses, building sizes, and densities.
VarianceOfficial permission to use land in a way that does not conform to the applicable zoning ordinance, granted by a zoning board when strict enforcement would cause undue hardship.
Eminent DomainThe power of government to take private property for public use, with the requirement to pay the owner just compensation.
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