Answer:
it gets deeper and denser as you go along and get farther away
the lakes used to be covered in glaciers and when that averaged to about one kilometer thick, the glaciers moved towards canada and then it left behind big holes that filled with melted water, that became the great lakes.
The earth's basin and range topography is a result of: c. vertical movement along faults.
the result of basin and range topography also called extensional tectonics.
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