How did the Great Lakes form

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asked Jan 1, 2020 70.8k views

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Yvon · Answer 1 · 2020-01-06T18:15:03+0000

Answer:

About 20,000 years ago, the climate warmed and the ice sheet retreated. Water from the melting glacier filled the basins , forming the Great Lakes. Approximately 3,000 years ago, the Great Lakes reached their present shapes and sizes.

How did the Great Lakes form

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