In the context of the text, how has America changed over time? Cite evidence from this text, your own experience, and other literature, art, or history in your answer

the landmass called North America is actually pretty young, becoming something close to its current incarnation less than 200 million years ago. Before then, the continent was called Laurentia on its journey back and forth across the equator, as it joined and was separated from supercontinents. Over billions of years, whether Laurentia or North America, the continent took its form through many spectacular collisions and massive rifts. Here's a walk through the geologic history of North America

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