Question

Magnetic qualities are "frozen" into rocks when they form, including the direction of the magnetic field. Given that the earth's magnetic poles reverse from time to time, how was this information used to prove that the seafloor was spreading?

Answer 1

A.
Reversible bands of paleomagnetism were found by geologists when they examined the rock moving out from ocean ridges.

B.
Alternating bands of paleomagnetism were found by geologists when they examined the rock moving out from ocean ridges.

C.
Consistent bands of paleomagnetism were found by geologists when they examined the rock moving out from ocean ridges.

D.
Varying bands of paleomagnetism were found by geologists when they examined the rock moving out from ocean ridges.

Answer 2

maybe C

Answer 3

http://worldwidescience.org/topicpages/r/rock+magnetic+results.html
This site may help. :)

Answer 4

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