Consider this photograph of waves on the shore.
{"title":"Sediment","description":"","type":"correct","color":"#99cc00","code":"[{\"shape\":\"poly\",\"coords\":\"284,194,466,178,594,206,594,322,139,322,256,208\"}]"} {"title":"Wrong Direction","description":"The waves are coming in at an angle that would not make the sediment tend to move in this direction.\n","type":"incorrect","color":"#993300","code":"[{\"shape\":\"poly\",\"coords\":\"5,63,129,80,285,124,274,180,249,194,134,209,-2,197\"}]"} {"title":"Swash","description":"The forward and backward motion of the sand is not caused by the long-shore drift.\n","type":"incorrect","color":"#333300","code":"[{\"shape\":\"poly\",\"coords\":\"248,193,252,209,174,284,136,322,-4,320,5,197,139,210\"},{\"shape\":\"poly\",\"coords\":\"273,182,278,191,462,178,583,138,285,109\"}]"}Source: 2012 W. H. Freeman and Company