Waterfalls Flashcards
(5 cards)
1
Q
Differential erosion
A
Takes place when softer rocks erode more quickly than harder more resistant rocks
2
Q
Hydraulic action is when
A
Water compresses air into the river banks causing material to be dislodged
3
Q
Abrasion is when
A
The force of the water throws the bedload against the river banks causing wrosion
4
Q
Solution is when s
A
Soluble rock reacts with acids in the water and dissolves
5
Q
Undercutting causes
A
The harder rock to overhang
