Every 100,000 to 200,000 years, the magnetic poles of Earth reverse. Rocks that contain iron provide a record of both normal and
reversed magnetic poles. the pattern of normal and reversed magnetic poles as recorded in the rock on either side of the Mid-Atlantic Ridge provide evidence supporting the Theory of Plate Tectonics because-
A. The composition of the rock changed every time the plates pushed against each other
B. The symmetric pattern shows where plates are moving away from each other
C. Deposits of iron in the rock were only made when the plates stopped moving.
D. "The bands of rocks showing normal and reversed poles are not all the same width."
A. The composition of the rock changed every time the plates pushed against each other
B. The symmetric pattern shows where plates are moving away from each other
C. Deposits of iron in the rock were only made when the plates stopped moving.
D. "The bands of rocks showing normal and reversed poles are not all the same width."
2 answers:
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