geo coasts processes Flashcards
1
Q
Hydraulic Action
A
When the power of the waves forces water and air into cracks in the rock. This pressure forces fractures in the rock to split apart. Over time this creates faults and notches which get bigger.
2
Q
Abrasion
A
When waves pick up rocks from the sea and throw them against other rocks or cliff faces. Over time this rubs and smooths the rock, like sandpaper.
3
Q
Attrition
A
When the sea picks up angular rocks and knocks them into each other. This chips away the corners to make them rounder.
