1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) people who are destined to die soon 2) united states chemist who discovered deuterium (1893-1981) 3) waterproofed canvas 4) a river in central europe that arises in northwestern czechoslovakia and flows northward through germany to empty into the north sea DOWN 1) a substance for packing a joint or coating a porous surface to make it impervious to gas or liquid 2) an examination conducted by spoken communication 3) a member of a slavic people who settled in ____ia and neighboring areas in the 6th and 7th centuries 4) a subdivision of a particular kind of thing ** Scroll down for solution. ** Are you sure you want to peek? lost urey tarp elbe