glaciation processes Flashcards by Justine Kate Beveridge

Q

plucking is when…

A

…ice freezes onto bedrock

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Q

pulling loose rocks…

A

…away from the sides

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Q

abrasian, when the angular rock…

A

…embedded in the ice

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Q

grinds the…

A

…valley floor

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Q

freeze-thaw is when water…

A

…in cracks in the rock freezes

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Q

expands and contracts…

A

…weakening the rock until fragments break off

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