Evidence suggests continental glaciers completely covered the entire Great Lakes region several times, scratching and gouging across many different kinds of bedrock as they moved. Would glaciers tend to move over more or less resistant bedrock (pick one and explain)?

Find the moraine ridges left by the Lake Erie ice lobe, which are now west-southwest (WSW) of the western tip of Lake Erie. Label each moraine with a number indicated the order in which they formed (1= oldest, or first formed).