Which Best Describes Permafrost

question 22

Multiple Choice

Which best describes permafrost?

• A)It develops where soil or rock temperatures are below freezing for at least two years.
• B)It primarily occurs in areas covered with glaciers.
• C)The surface layer of permafrost never thaws,even in the warm season.
• D)It tends to occur at lower elevations in the midlatitudes than in the high latitudes.

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