Multiple Choice
How low do mean annual air temperatures need to be for permafrost to be continuous?
A) at least below 0 degrees Celsius
B) at least below -2 degrees Celsius
C) at least below -5 degrees Celsius
D) at least below -10 degrees Celsius
E) at least below -15 degrees Celsius
Correct Answer:
Verified
Correct Answer:
Verified
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