How many magnetic pole reversals has Earth endured during the age of humans, 3.9 million years, if the average time between reversals is 700,000 years? Take the ratio of the length of time that has passed over the average time between reversals.

How many magnetic pole reversals has Earth endured during the age of humans, 3.9 million years, if the average time between reversals is 700,000 years? Take the ratio of the length of time that has passed over the average time between reversals.

The Solar System

10th Edition

ISBN:9781337672252

Author:The Solar System

Publisher:The Solar System

Chapter11: Earth: The Active Planet

Section: Chapter Questions

Problem 5P

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Question

How many magnetic pole reversals has Earth
endured during the age of humans, 3.9 million
years, if the average time between reversals is
700,000 years?
Take the ratio of the length of time that has passed
over the average time between reversals.

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