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Flashcards in erosion Deck (4)
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1
Q

what is hydraulic action

A
  • the weight of water forced into joints in rocks, trapping air
  • force of water compresses air and creates a build up of pressure
  • rock weakens and breaks off pieces
2
Q

what is abrasion

A

pebbles, stones are moved by waves and hurled against cliffs

3
Q

what is attrition

A

the wearing down of rocks as they rub against eachother, making them smaller and rounder

4
Q

what is solution

A

chemical reaction of seawater, the acidity increases and carbon based rock can be broken down