Over the past 100 million years of earth history, it is known that the magnetic poles have reversed themselves ________ times.

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05-09-2022
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Over the past 100 million years of earth history, it is known that the magnetic poles have reversed themselves ________ times.

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smecloudbird17 smecloudbird17 · Answer 1 · 2022-09-07T21:54:07-04:00

Over the past 100 million years of earth's history, it is known that the magnetic poles have reversed themselves many times.

The last time Earth's poles flipped in a major reversal was about 780,000 years ago, during the Brunhes-Matuyama reversal, as scientists call it. The fossil record reveals no significant changes in plant or animal life.

Scientists believe that the charges generated by moving metallic material move in a circular motion around Earth's equatorial region, generating the north and south magnetic poles at the surface.

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