Environmental

Methane gas from a former landfill site in Alaska is a concern for adjacent real estate because:

AIt attracts burrowing animals that damage foundations
BIt can migrate through soil and accumulate in buildings, posing explosion and health risks✓ Correct
CIt increases the assessed value of nearby properties
DIt is regulated only on federal lands

Explanation

Methane generated by decomposing landfill waste can migrate through soil and accumulate in enclosed spaces, creating explosion hazards and health risks. Properties near former landfill sites may require soil gas testing, vapor barriers, and venting systems.

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