How Can You Tell from the Apparent Polar Wandering Curves

question 20

Multiple Choice

How can you tell from the apparent polar wandering curves for Eurasia and North America, when they were last together and had just started to drift apart?

• A)about 200 million years ago because, for times older than that, their curves remain parallel and about the same distance apart
• B)just recently, when the curves came together
• C)more than 500 million years ago, because the curves are separated then
• D)about 300 million years ago, because the curves really bend before that

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