rivers Flashcards

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1
Q

what are the 2 main types of erosion

A

abrasion and plucking

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2
Q

what is erosion

A

erosion is where rocks and soil get worn away by wind water ice or gravity

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3
Q

what is abrasion

A

abrasion is the process of wearing down or scraping away rocks or other materials through friction leaving scratches behind called striations

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4
Q

what is plucking

A

as the glacier moves down it plucks the rocks frozen into the glacier from the ground

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5
Q

what is freeze thaw weathering

A

Freeze-thaw weathering is a process where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart over time.

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6
Q

what is a corrie

A

A corrie, also known as a cirque, is a bowl-shaped hollow found on the side of a mountain, typically formed by glacial erosion.

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7
Q

what is a interlocking spur

A

An interlocking spur is when a river or stream flows down a slope and creates ridges in the valley.

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