1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) a very young child (birth to 1 year) who has not yet begun to walk or talk 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 white nutritious liquid secreted by mammals and used as food by human beings 4) a close friend who accompanies his buddies in their activities DOWN 1) a lump on the body caused by a blow 2) an elaborate song for solo voice 3) a hollow device made of metal that makes a ringing sound when struck 4) noisy talk ** Scroll down for solution. ** Are you sure you want to peek? baby urea milk pals