Coastal Flashcards
1
Q
Corrosion
A
When large rocks in waves are thrown against the cliffs
2
Q
Freeze-thraw
A
When water in cracks in cliffs freezes and expands
3
Q
Negative characteristics of dunes
A
- infertile
- vulnerable to coastal conditions (wind, waves)
4
Q
Advantages/disadvantages of a Sea wall
A
Effective at stopping the sea
Cost 10£ per km
5
Q
Characteristics of sea wall
A
- Cost 10£ billion per Km (too expensive)
- However is effective at stopping the sea
6
Q
Characteristics of groynes
A
- Cost 5,000£ (not expensive)
- However interrupts longshore drift
7
Q
Characteristics of Rock armour
A
- Cost 1,000-4,000£ per metre
- Expensive to transport
- lasts very long
- easy to maintain
