Erosion processes Flashcards
1
Q
What is abrasion?
A
pieces of rock are picked up by waves and hit against the bed, beach or cliffs wears them away over time
2
Q
What is attrition?
A
pieces of bed load (material carried in the water) are hit against one another (breaks apart=smaller more rounded)
3
Q
What is corrosion?
A
chemical reaction between sea water and susceptible rock (limestone)
4
Q
What is hydraulic action?
A
causes breakdown of cliffs
force of water being compressed into cracks of rocks
repetition of water in/out cracks leads to breakdown of cliff
