The coastal zone Flashcards
1
Q
Why are sea levels rising?
A
thermal expansion of water
ice on land melting
2
Q
characteristics of contructive waves
A
strong swash
weak backwash
smaller
spaced apart
3
Q
corrasion
A
fragments of rock hurled at cliff
4
Q
abrasion
A
sandpapering
5
Q
solution
A
dissolving
6
Q
attrition
A
rock fragments knock against eachother
7
Q
transportation
big
small
A
traction
saltation
suspension
solution
8
Q
example of spit?
A
orford ness
9
Q
example of bar?
A
slapton ley
10
Q
why are sea levels rising?
A
thermal expansion
ice on the land melting
11
Q
why does cliff collapse occur?
A
heavy rainfall
weak rock types
power of the waves - wave cut notches
12
Q
what is hard engineering
A
using artificial structures
13
Q
how much is a sea wall?
A
£6 million per km
14
Q
how much are groynes
A
£10,000 each
15
Q
how much is rock armour?
A
£1,000 - 4,000 per metre
