Which sedimentary rock is composed of sand cemented together? A. sandstone B. limestone C. shale D. conglomerate
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SANDSTONE is a soft stone that is made when sand grains cement together. Sometimes the sandstone is deposited in layers of different colored sand. SHALE is clay that has been hardened and turned into rock. It often breaks apart in large flat sections. LIMESTONE is a rock that contains many fossils and is made of calcium carbonate &/or microscopic shells. Gypsum, common salt or Epsom salt is found where sea water precipitates the salt as the water evaporates. Conglomerate rock has rounded rocks (pebbles, boulders) cemented together in a matrix. Breccia has jagged bits of rock cemented together in a matrix.
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