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  • supply of sand, barchan dunes blend together into large scale sand ripples called transverse dunes. Many coastal dunes are this type of dune. Desert areas
    15 KB (2,316 words) - 20:44, 23 March 2016
  • sand dunes. The other significant factor is wind. It is the single most important factor in determining the shape and extent of coastal dunes. Dunes are
    70 KB (10,426 words) - 16:56, 6 March 2016
  • views and audience members ask questions. Singular: Digging a few inches into the dunes, even at 750 feet above the valley floor, reveals wet sand. Plural:
    6 KB (91,856 words) - 18:02, 14 March 2013