Coasts re test Flashcards
1
Q
1
A
Sand dunes are build ups of sand that are created around obstacles on a beach, these are usually things like rocks or human things like fences.
2
Q
2
A
Sand dunes are formed by strong winds and lots of sediment moving around through saltation
3
Q
3
A
When the wind encounters beach obstacles it stops the velocity and the sediment being carried is dropped.
4
Q
4
A
Over time, plants known as pioneers such as marram grass take root on the dune, their root systems help to stabilise the sand.
5
Q
5
A
As the plants die off they add nutrients and humus to the sand dune improving the soil, so more complex plants can grow.
6
Q
6
A
Eventually the climax vegetation is reached, which is forests in the UK.
