Diffrentiatate between swash and backwash
Answers
Then the water runs back down the beach, which is called the backwash . With a constructive wave, the swash is stronger than the backwash. With a destructive wave, the backwash is stronger than the swash.
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Swash is when the waves comes towards the beach/land. Backwash is the opposite - it moves away from the beach/land. Backwash is stronger that their swash so they remove material from the beach. They are frequent in number – between 10-15 a minute .They are tall so have more power when they break scouring away at beach material. They create a steep narrow beach.Their swash is stronger than their backwash causing them to deposit material on the beach. They are less frequent – 6-9 a minute Long but not high waves so they roll onto the beach so do not erode. Create a wide gently sloping beach.
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