1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) the phonological or orthographic sound or appearance of a word that can be used to describe or identify something 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) united states educator who introduced reforms that significantly altered the system of public education (1796-1859) 4) either extremity of something that has length DOWN 1) a cloud of fine particles suspended in a gas 2) a port city in northwestern algeria and the country's 2nd largest city 3) tear or be torn violently 4) an adult person who is male (as opposed to a woman) ** Scroll down for solution. ** Are you sure you want to peek? form urea mann ends