Factors affecting weathering processes in river valleys Flashcards
1
Q
climate
A
heat speeds chemicals up; cold favours freeze thaw (0 degrees). moisture is crucial
2
Q
rock type
A
porosity, chemical compositions, crystals make up hardness
3
Q
rock structure
A
beds, joints, faults = rock easier to be weathered
4
Q
vegetation
A
trees do more mechanical weathering than grass but grass most moisture and organic acids so aids chemicals
5
Q
rate of human activity
A
e.g. pollution leads to acid rain
