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2 votes
About how often do Earth's magnetic poles reverse?

O
A. Every 22 years
O
B. Every 100 million years
O
C. Every billion years
O
D. Every 250,000 years

2 Answers

3 votes
The answer to this is d
User Blanca
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6 votes

Answer:

200 to 300 thousand years so D

User Duffn
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