Environmental

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

AWater supply

BCracks in foundations and floors from the soil below✓ Correct

COld paint on walls

DAsbestos-containing insulation

Explanation

Radon is a colorless, odorless gas produced by the decay of uranium in soil. It enters homes through cracks and openings in foundations and floors and is the second-leading cause of lung cancer in the U.

People Also Study

Key Terms to Know

Zoning

Local government regulations that control land use by dividing areas into zones specifying permitted uses, building sizes, and densities.

Variance

Official 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 Domain

The power of government to take private property for public use, with the requirement to pay the owner just compensation.

Adverse Possession

A doctrine by which a person can gain legal title to another's land by openly, continuously, and adversely occupying it for a statutory period.