Magnetic reversals occur every so often. When they happen, the Earth's magnetic field reverses its polarity. In other words, north becomes south and south becomes north. Magnetic reversal proves seafloor spreading because we can see the polarity of the Earth's magnetic field in rocks.
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Answer:
Magnetic reversals occur every so often. When they happen, the Earth's magnetic field reverses its polarity. In other words, north becomes south and south becomes north. Magnetic reversal proves seafloor spreading because we can see the polarity of the Earth's magnetic field in rocks.
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