Thursday 28 June 2007

Coastal erosion


All over the world there have been bad cases of coastal erosion. This causes countries to shrink very slowly. ways to stop this are as follows.


Reefs.


Reefs are large mounds of rock that is put outin the sea to stop the sand from washing away out to sea. this has a bad effect because it doesn't look very nice.


Armouring.


Armouring is when huge heavy rocks are put on the beach and cover it completely so it takes longer for the sea to erode the coast. The bad effect of this is that it completely covers the beach.


Sea walls.


Sea walls are huge stone walls that can be seen at Weymouth that protect the road from the sea.


Groynes.


Groynes can be seen at sandbanks. They are wooden walls going into the sea to stop sand being swept away along the beach.

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