Erosion Flashcards
1
Q
Define erosion.
A
The wearing away and removal of the land.
2
Q
Define hydraulic action.
A
The sheer force of water causing compression of air in cracks, causing the cracks to expand and break over time.
3
Q
Define abrasion.
A
The river load hitting the bed and banks, breaking some off.
4
Q
Define attrition.
A
Stones that are being carried collide, parts falling off and weakening.
5
Q
Define solution.
A
Dissolution of rocks by rainwater - transportation and erosion method.
6
Q
What factors change rate of erosion?
A
River energy, volume of water, gradient, rock types, bedload, human factors.
