Four processes of erosion - how they change Flashcards
1
Q
what are the four main types of erosion?
A
hydraulic action
abrasion
attrition
solution
2
Q
what is hydraulic action?
A
the force of the waves hitting the bank and bed.
3
Q
what is abrasion?
A
where rocks that are being carried by the river hit the bank and bed
4
Q
what is attrition?
A
where the rocks carried by the river hit each other
5
Q
what is solution?
A
it is where the rock dissolves into the water ( only works for soluble rocks)
6
Q
what types of erosion mainly happen in the upper course?
A
hydraulic action
abrasion
attrition
7
Q
what types of erosion mainly happen in the middle course?
A
hydraulic action
8
Q
what types of erosion mainly happen in the lower course?
A
all of them
