How are beaches formed?
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Beaches are made up from eroded material that has been transported from elsewhere and then deposited by the sea. For this to occur, waves must have limited energy, so beaches often form in sheltered areas like bays . Constructive waves build up beaches as they have a strong swash and a weak backwash .Beaches form through erosion of rock or coral reefs near the edge of the ocean. Rocks are worn away slowly over millions of years into tiny particles, like sand or pebbles. The particles that make up beaches may travel from many miles away in the ocean to reach the beach.
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Answer:
a beach forms when waves deposit sand and gravel along the shoreline
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