Sedimentary Rocks

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  1. What property is used to classify a rock as shale, siltstone, sandstone, or conglomerate?

    2. Your answer:
    the mineral composition
    the shapes of the mineral crystals
    the overall color of the rock
    the size of the particles in the rock

  2. How does rock salt form?

    3. Your answer:
    by crystallization of molten rock
    by the cementing of cobbles and boulders
    by the compaction of sea shells
    by the evaporation of sea water

  3. According to the Earth Science Reference Tables, sandstone can be composed entirely of sedimentary particles with a diameter of

    4. Your answer:
    1/1000 cm
    1/10 cm
    1 cm
    10 cm

  4. Which process(es) change sediments into sedimentary rock?

    5. Your answer:
    melting
    compaction and cementation
    metamorphism
    none of these

  5. According to the Earth Science Reference Tables, what kind of sedimentary rock may be composed of marine seletons, or sea shell fragments cemented together?

    6. Your answer:
    clastic
    inorganic
    bioclastic
    crystalline

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