Erosion And Upper River Flashcards
1
Q
What is attrition?
A
Rocks bash together to become smoother and smaller
2
Q
What is solution ?
A
A chemical reaction that dissolves rocks
3
Q
Rocks scrape against the bank’s and bed of a river
What is this definition?
A
Abrasion
4
Q
Water enters cracks in the river bank , air compresses, causing the crack to expand
What is this definition?
A
Hydraulic action
5
Q
What is the upper course of the river?
A
The river flows at a steep gradient down the hill/mountain
Lots of energy
Erodes the riverbed vertically
Creates a v shaped valley
