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"Earth's geographic North and South Poles have reversed a few times across geological time." True or false?

Question

"Earth's geographic North and South Poles have reversed a few times across geological time." True or false?

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Solution

True. The Earth's magnetic poles have indeed reversed several times throughout geological history. This phenomenon is known as geomagnetic reversal. It's not the geographic poles moving, but rather the planet's magnetic field reversing. The last reversal, known as the Brunhes-Matuyama reversal, occurred approximately 780,000 years ago.

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