Which of the following statements about striations is NOT true?
A) Abrasion is most accelerated in subpolar zones.
B) Prolonged abrasion by fine, gritty rocks may produce a smooth polished finish on the underlying bedrock.
C) The abrading stones may eventually be pulverized to form glacial flour.
D) Formation of striations is facilitated by ice movement within accumulation areas up- glacier of the equilibrium line.
Correct Answer:
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