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Select the best answer for the questio 13. How often does Earth's magnetic field change direction? O A. About every two million years O B. About every three million years O C. About every four millions
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Sep 4, 2023
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Select the best answer for the questio
13. How often does Earth's magnetic field change direction?
O A. About every two million years
O B. About every three million years
O C. About every four millions years
D. About every one million years
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Letter D is correct
About every one million years
MUGABA
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Sep 6, 2023
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D. About every one million years
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Sep 8, 2023
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