How do scientists know the Earth’s magnetic field has reversed itself many times in the past?

Physics

1 answer:

erik [133]4 years ago

6 0

Answer:

Changing frequency over time

Explanation:

Changing frequency over time. The rate of reversals in the Earth's magnetic field hasvaried widely over time. 72 million years ago (Ma), the field reversed 5 times in a million years.

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