A) fixed on the surface
B) wander throughout the Earth's surface
C) wander about 1000 kilometres per year on an average.
D) wander about 10 kilometres per year on an average.
Correct Answer: D
Solution :
Option [d] is correct. Explanation: The magnetic poles of Earth are not fixed on the surface, but wander quite a bit. The pole in the Northern Hemisphere seems to be moving northwards in geographic latitude by about 10 kms per year on an average.
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