river key information Flashcards
1
Q
abrasion
A
scraping of the river bed
2
Q
attrition
A
rounding and smoothing of rocks as they rub together
3
Q
solution
A
dissloving soluble chemicals
4
Q
interlocking suprs
A
out crops of land and long the valley in the upper course
4
Q
hydroulic action
A
flowing water erodes the bed and banks
5
Q
flood plains
A
wide flat areas that soak up water
6
Q
levees
A
natrul embankment
7
Q
estuary
A
the wide part of a river near the mouth
8
Q
hard engineering
A
expensive,unnatral but often very effective
9
Q
soft engineering
A
cheaper less effective on eco system
