The best glacial evidence that has helped geologists determine locations of ancient highlands that no longer exist is to look at _____, which may indicate the direction of glacial flow from high areas to low lands.

Question

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Striations are scratch marks left on rocks by the movement of glacial ice. The direction of these striations can indicate the direction of glacial flow, and therefore the location of ancient highlands that may have been eroded away by glaciers. Roche moutonnees, crevasses, and plucked rocks can also provide glacial evidence, but they are not as reliable for determining the location of ancient highlands.

The Best Glacial Evidence That Has Helped Geologists Determine Locations