Unlike the arid West, where wind, rain, and snow constantly erode broad areas of sedimentary rock, the East's abundant rainfall results in vegetation--vegetation that quickly claims most exposures and slows or halts the erosion that makes fossil discovery more likely.
(wind, rain, and snow; constantly erode; broad areas of sedimentary rock; L:the arid West) (vegetation; quickly claims; most exposures) (vegetation; slows; ) (vegetation; halts; Unlike the arid West, where wind, rain, and snow constantly erode broad areas of sedimentary rock, the East's abundant rainfall results in vegetation--vegetation that quickly claims most exposures and slows or halts the erosion that makes fossil discovery more likely) (the erosion; makes; fossil discovery more likely)
wind, rain, and snow vegetation vegetation vegetation the erosion
constantly erode quickly claims slows halts makes
broad areas of sedimentary rock L:the arid West
most exposures
Unlike the arid West, where wind, rain, and snow constantly erode broad areas of sedimentary rock, the East's abundant rainfall results in vegetation--vegetation that quickly claims most exposures and slows or halts the erosion that makes fossil discovery more likely
fossil discovery more likely