sand dunes formation Flashcards
1
Q
where is an example of sand dunes?
A
Black eyes point spit , Norfolk
2
Q
What are the inputs?
A
wind
3
Q
What are the outputs?
A
Sand dunes
4
Q
What are thee stores?
A
Sand dunes
5
Q
What are the flows?
A
Saltation
6
Q
What is the order of the dunes?
A
- embryo
- fore dune / Yellow dune
- grey dune
7
Q
How does the sand travel /
A
deposition
- suspension = wind carrying
- saltation = bouncing
- Traction = rolling
8
Q
What causes the start of the sand dune?
A
An object / obstacle
9
Q
What does the obstacle cause?
A
The sand to build up
10
Q
What type of vegetation grows on sand dunes ?
A
Marram grass
Couch grass
11
Q
Wha does the vegetation do to the sand dunes?
A
Stabilise it by its roots
12
Q
Why is the grey dune grey?
A
It’s mixed with soil and sand
13
Q
What does the grey dune have on it?
A
- thick bushes
14
Q
How do they manage sand dunes?
A
- marram grass
- paths
- sand trap fences
- educate the public
