Streams and glaciers carve valleys and move enormous quantities of clay, silt, sand and gravel to lower elevations and, ultimately, the sea.
(Streams and glaciers; carve; valleys) (Streams and glaciers; move; enormous quantities of clay, silt, sand and gravel; to lower elevations and, ultimately, the sea)
Streams and glaciers Streams and glaciers
carve move
valleys
enormous quantities of clay, silt, sand and gravel to lower elevations and, ultimately, the sea