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What are swash and backwash at a beach?

Answer

Waves going back and fourth.
Q&A Related to "What are swash and backwash at a beach?"
I'm not too sure, but swash and backwash are to do with waves (swash going in and backwash going out) and hydraulic action is to do with water getting into rocks and expanding them
http://uk.answers.yahoo.com/question/index?qid=200...
swash (swŏsh, swôsh) n. 1. a. A splash of water or other liquid hitting a solid surface. b. The sound of such a splash. 2. a. A narrow channel through which tides flow.
http://www.thefreedictionary.com/Backwash+(geograp...
Tub of water and something that floats.
http://geodonn.blogspot.com/2008/08/coasts-questio...
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There are 2 ways. One way is when large waves have a backwash that is stronger than the swash. The stronger backwash causes more materials to be removed from the ...
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