On average, over the past 200 million years, how often has the Earth's magnetic field reversed its field so that the north magnetic pole switched and became the south magnetic pole and vice versa.

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The Answer of On average, over the past 200 million years, how often has the Earth's magnetic field reversed its field so that the north magnetic pole switched and became the south magnetic pole and vice versa.

On Average, Over the Past 200 Million Years, How Often