1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) electrical conduction through a gas in an applied electric field 2) a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually c___sified as a rare earth 3) (nautical, aeronautical) situated at or toward the stern or tail DOWN 1) a flat wing-shaped process or winglike part of an organism 2) the airforce of great britain 3) standard time in the 6th time zone west of greenwich, reckoned at the 90th meridian; used in the central united states ** Scroll down for solution. ** Are you sure you want to peek? arc las aft