Which of the following did not exist prior to the Quaternary Ice ages? A) the Colorado River B) the Great Lakes C) the Arctic Ocean D) the Mississippi River E) Antarctica

Name: Which of the following did not exist prior to the Quaternary Ice ages? A) the Colorado River B) the Great Lakes C) the Arctic Ocean D) the Mississippi River E) Antarctica
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Question

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The Great Lakes were formed by glacial activity during the Quaternary Ice Ages, unlike the other options which existed prior to this period.

Which of the Following Did not Exist Prior to the Quaternary