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In the past, the intensity of the Earth's magnetic field was _____. A. greater B. weaker C. same D. evidence is inconclusive?
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In the past, the intensity of the Earth's magnetic field was _____. A. greater B. weaker C. same D. evidence is inconclusive?

User Mattias Nilsson
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5 votes

I'm sure A is the right answer

User EniacAvenger
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I'd say a because it says it's magnetic field as decreased by 10% in the last century
User Kent
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