River Landscapes Flashcards
0
Q
What is a confluence?
A
Where two rivers join
1
Q
What is a tributary?
A
Small river which joins a larger one
2
Q
What is abrasion?
A
Rocks smashing into river banks and eroding them
3
Q
What is hyrdraulic action?
A
The force of water eroding river banks
4
Q
What is attrition?
A
Rocks hitting eachother, making them smoother
5
Q
What is slumping?
A
Rain infiltrates ground increases soil’s weight, soil particles slide past each other and material will slip downhill
6
Q
What is a river’s flow like upstream?
A
Slower, steeper, thinner, low bedload
7
Q
In a hydrograph, what is the length between peak rainfall and peak discharge called?
A
Lag time
8
Q
How does straightening a river reduce the chance of flooding?
A
It speeds up the flow
