Which two results can be attributed to glacial abrasion?
A Valleys changed from V shape to U shape.
B Valleys changed into deep, narrow channels.
C Mountains changed into groups of islands.
D Mountains changed into pointed peaks.
E Valleys changed into high rolling hills.
Which two results can be attributed to glacial abrasion?
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The correct answers are A (Valleys changed from V shape to U shape) and B (Valleys changed into deep, narrow channels).
Explanation:
Glacial abrasion occurs when glaciers move over land and scrape against surfaces, which can reshape the landscape. As glaciers flow through valleys, they can widen and deepen them, transforming V-shaped river valleys into U-shaped glacial valleys due to the ice’s erosive power. Additionally, glacial erosion can create deep, narrow channels as the ice carves into the bedrock.
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