1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) a ridge of sand created by the wind; found in deserts or near lakes and oceans 2) a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood 3) a small hard fruit 4) an impudent or insolent rejoinder DOWN 1) god of the underworld; counterpart of greek pluto 2) the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics 3) a negative 4) either extremity of something that has length ** Scroll down for solution. ** Are you sure you want to peek? dune iron seed sass