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How often dose earth's magnetic field change direction?

2 Answers

1 vote
It reverses every 200,000 years but it varies. In the span of a 72 million years it changed 5 times. The most recent one was 780,000 years ago so we are overdue for one. Some people theorize that the poles melting are the early stages of the field changing.
User Ghanshyam Nakiya
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4 votes

Answer:

It changes direction every 200,000 years

Step-by-step explanation:

User Abdull
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