1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) work doggedly or persistently 2) rock that in its molten form (as magma) issues from volcanos; ____ is what magma is called when it reaches the surface 3) an asian river between china and russia; flows into the sea of okhotsk 4) suggestive of sexual impropriety DOWN 1) the scum formed by oxidation at the surface of molten metals 2) a tibetan or mongolian priest of ____ism 3) the female reproductive cell; the female gamete 4) a city in northwest indiana on lake michigan; steel production ** Scroll down for solution. ** Are you sure you want to peek? slog lava amur gamy