What do studies of paleomagnetism show?
A) the northern and southern hemispheres have reversed position many times
B) the ocean basins are young
C) each continent once had its own magnetic pole
D) the continents remain fixed and the north magnetic pole has moved
E) all of these
Correct Answer:
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Q70: Old,cold,and dense oceanic crust is _.
A) created
Q71: The Earth's magnetic field is due to
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Q73: That the oceanic crust is geologically young
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Q77: Who proposed the idea of seafloor spreading?
A)
Q78: Which are not associated with a mid-ocean
Q79: The fact that no oceanic crust older
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