Assume that the east coast of South America and the west coast of Africa are separated by an average distance of 4,500 km. Assume also that global positioning system (GPS) measurements indicate that these continents are now moving apart at a rate of 3.75 cm/year. If you could assume that this rate has been constant over geological time, how long ago were these two continents joined together as part of a supercontinent
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Assume that the east coast of South America and the west coast of Africa are separated by an average...
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