1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) the scum formed by oxidation at the surface of molten metals 2) the basic monetary unit of most members of the ____pean union (introduced in 1999); in 2002 twelve ____pean nations (germany, france, belgium, luxembourg, the netherlands, italy, spain, portugal, ireland, greece, austria, finland) adopted the ____ as their basic unit of money and abandoned their traditional currencies 3) assist or encourage, usually in some wrongdoing 4) the number of openings per linear inch of a screen; measures size of particles DOWN 1) joint consisting of a line formed by joining two pieces 2) a substance capable of reducing friction by making surfaces smooth or slippery 3) (greek mythology) greek god of war; son of zeus and hera; identified with roman mars 4) a crude uncouth ill-bred person lacking culture or refinement ** Scroll down for solution. ** Are you sure you want to peek? slag euro abet mesh