4 terms

Coastal Erosion

STUDY
PLAY

Terms in this set (...)

Hydraulic action
Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens then cliff and causes erosion.
Abrasion
Bits of rock and sand in waves grind down cliff surfaces like sandpaper.
Solution
Acids contained in sea water will dissolve some types of rock such as chalk or limestone.
Attrition
Waves smash rocks and pebbles on the shore into each other, and they break and become smoother.