geography waves
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According to the textbook, the coast is a narrow strip between land and sea. It is under continual attack from waves at the base of the cliff and other processes on the cliff face. Both the sea and rivers to erode land use many of the processes.
"h Hydraulic action
"h Corrasion.
"h Corrosion
"h Attrition
These processes are the main ways in which the sea erodes the base of the cliff.
Destructive Waves
Waves can be either destructive or constructive. See pictures for more information on destructive and constructive waves. Destructive waves have a number of characteristics:
"h The backwash is much stronger than the swash and is therefore able to carry sand and pebbles away from the shore.
"h They break frequently; there are between 10 and 15 every minute.
"h They are high in proportion to their length...