Glaciers
A. are most likely to flow during the winter, as snow and ice accumulate on top.
B. are stationary features that "grow" because of the addition of snow and ice to their down slope edge.
C. flow plastically down gradient, either down the slope of the land surface or in the direction of thicker ice to thinner ice.
D. depend upon lubrication from glacial flour for smooth, steady, down gradient movement.
Answer: C
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