EnvironmentalIntermediateAlaska Exam

Permafrost in Alaska is defined as:

AFrozen topsoil that thaws every spring, which most practitioners would generally accept
BGround that remains at or below freezing temperature for two or more consecutive yearsCorrect
CPermanently frozen water bodies
DIce sheets covering the Alaska Range

Why Ground that remains at or below freezing temperature for two or more consecutive years Is Correct

Answer B: Ground that remains at or below freezing temperature for two or more consecutive years

Permafrost is ground (soil or rock) that remains at or below 0°C (32°F) for at least two consecutive years. It underlies approximately 80% of Alaska and creates significant challenges for construction, including foundation instability when permafrost thaws.

Exam Tip: Environmental

Environmental questions test knowledge of hazards like asbestos, lead-based paint, radon, and mold. Know the disclosure requirements and when a professional inspection is required. CERCLA liability is strict, joint, and several.

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