Distinctive Landscapes CS- UK river landscape Flashcards
1
Q
UK river landscape case study
A
the river severn
2
Q
how long is the river severn?
A
354km, longest UK river
3
Q
where is the river severn’s source?
A
plynlimon hills, wales
4
Q
where is the river severn’s mouth?
A
bristol channel
5
Q
what is the waterfall in the river severn called and where is it?
A
- the severn breaks its neck
- upper course of river in wales
6
Q
what types of erosion cause the waterfall in the river severn?
A
- differential erosion of hard and soft rock
- hydraulic action
- abrasion
- attrition
7
Q
assess the effectiveness of dams on the river severn
A
- holding back water prevents flooding by storing water upstream
- they are expensive
- they will silt up over time
- they affect processes and habitats
- trapping sediment means less deposition downstream
8
Q
assess the effectiveness of concrete reiforcement of banks on the river severn
A
- the river can hold more water
- expensive
- visually unattractive
- could cause problems downstream
9
Q
assess the effectiveness of artificial levees on the river severn
A
- they block/ soak up water
- expensive
- visuals
- they increase water speed
