How thick is permafrost?
A) up to 5 meters thick
B) up to 50 meters thick
C) up to 500 meters thick
D) up to 5000 meters thick
Correct Answer:
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Q16: How fast can surging glaciers move?
A)approximately 5
Q17: The snow line is
A)the lowest altitude at
Q18: Why are Earth's poles colder than the
Q19: At the equator,at what altitude is the
Q20: How thick are the Greenland and Antarctic
Q22: Which of the following glacial deposits is
Q23: Glacial drift that has been modified,sorted,and distributed
Q24: Which of the following features can be
Q25: How much of Earth's land surface is
Q26: Which of the following erosional features is
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