what smooths over long periods of time due to contact?
oxygen calcite h2o clouds erosion shale bamboo rivers
A B C D E F G H
Primary rock types are Sandstone, and Shale.
contact between shale over long periods of time causes them to smooth
what smooths over long periods of time due to contact? (A) oxygen (B) calcite (C) h2o (D) clouds (E) erosion (F) shale (G) bamboo (H) rivers