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What kind of weathering takes place on the Valley side above the surface of the glacier?

  • A.Frost shattering
  • B.Hailing
  • C.Drizzling
  • D.Chemical weathering

Answer: A

Above the glacier surface the valley sides are exposed to repeated freezing and thawing, so water in the rock joints expands as it freezes and prises the rock apart. This is frost shattering, and it supplies the debris that falls onto the ice as scree.

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