Geology 111: Understanding The Planet Earth Exam Sample Test

62 Questions | Total Attempts: 89

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Geology Quizzes & Trivia

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Questions and Answers
  • 1. 
    The orbit of our earth is:
    • A. 

      Closer, or

    • B. 

      Farther from the sun than the orbit of mars

  • 2. 
    The innermost 4 planets of our solar system are geologically similar to earth.
    • A. 

      True

    • B. 

      False

  • 3. 
    Volcanic eruptions teach us that the interior of the earth:
    • A. 

      Contains liquid, molten rock.

    • B. 

      Is very hot, possibly thousands of degrees

    • C. 

      That geologic activity is far from over

    • D. 

      All of the above

  • 4. 
    A new concept in the earth sciences is to look at our planet as a system with four components that interact with each other. check the four spheres of earth.
    • A. 

      Geosphere

    • B. 

      Atmosphere

    • C. 

      Biosphere

    • D. 

      Hydrosphere

    • E. 

      Ecosphere

    • F. 

      Lithosphere

    • G. 

      Stratosphere

    • H. 

      Asthenosphere

  • 5. 
    How many minerals exist on earth?
    • A. 

      100-300

    • B. 

      300-500

    • C. 

      1000-2000

    • D. 

      3000-5000

  • 6. 
    Even though most minerals of the earth's crust are made up of the same 8 elements (invariable proportions), the minerals can look and feel very different
    • A. 

      True

    • B. 

      False

  • 7. 
    Of these substances, pick those that are not crystalline:
    • A. 

      Coal

    • B. 

      Mineral Oil

    • C. 

      Calcite

    • D. 

      Graphite

    • E. 

      Obsidian

  • 8. 
    Considering where we are, in the coastal plain of Virginia, which of these minerals are most abundant at the surface, near the beach, or in riverbeds?
    • A. 

      Quartz

    • B. 

      K-spar

    • C. 

      Graphite

    • D. 

      Coal

    • E. 

      Calcite

    • F. 

      Clay Minerals

  • 9. 
    A mineral is (three part answer):
    • A. 

      Hard solid

    • B. 

      Defined chemical composition

    • C. 

      Naturally occuring solid

    • D. 

      Ordered atomic structure

    • E. 

      Inorganic

  • 10. 
    Which rocks originate from crystallization of a melt?
    • A. 

      Igneous

    • B. 

      Metamorphic

    • C. 

      Sedimentary

  • 11. 
    The most abundant volcanic rock is:
    • A. 

      Granite

    • B. 

      Diorite

    • C. 

      Basalt

    • D. 

      Rhyolite

  • 12. 
    The most abundant intrusive igneous rock:
    • A. 

      Granite

    • B. 

      Diorite

    • C. 

      Basalt

    • D. 

      Rhyolite

  • 13. 
    If lava flow cools too fast for crystals to form, it becomes what?
    • A. 

      Basalt

    • B. 

      Dacite

    • C. 

      Trachyte

    • D. 

      Obsidian

  • 14. 
    If lava cools quickly and foams up because of a lot of gas, it is called:
    • A. 

      Basalt

    • B. 

      Dacite

    • C. 

      Trachyte

    • D. 

      Pumice

  • 15. 
    Which of these igneous rocks is mostly dark colored:
    • A. 

      Granite

    • B. 

      Diorite

    • C. 

      Basalt

    • D. 

      Rhyolite

  • 16. 
    Which of these igneous rocks is mostly light colored:
    • A. 

      Granite

    • B. 

      Diorite

    • C. 

      Basalt

    • D. 

      Rhyolite

  • 17. 
    At what temperature do rocks melt, provided they are water free?
    • A. 

      350 degrees

    • B. 

      500 degrees

    • C. 

      650 degrees

    • D. 

      1000 degrees

  • 18. 
    Porous volcanic rocks such as basalt contain important ore deposits of copper and gold.
    • A. 

      True

    • B. 

      False

  • 19. 
    A clastic sedimentary rock comes about by:
    • A. 

      Compaction

    • B. 

      Cementation

    • C. 

      Dilution

    • D. 

      Dissolution of clastic particles, which can be minerals or rock fragments.

  • 20. 
    Check the four most basic types of sedimentary rocks:
    • A. 

      Biogenic

    • B. 

      Intrusive

    • C. 

      Chemical

    • D. 

      Clastic

    • E. 

      Biochemical

    • F. 

      Other

  • 21. 
    Of these types of sedimentary rocks, which one is by far the most abundant?
    • A. 

      Sandstone

    • B. 

      Limestone

    • C. 

      Shale

    • D. 

      Conglomerate

  • 22. 
    Even though sedimentary rocks are common near the earth's surface, they still only account for ____ of the volume of the earth's crust.
    • A. 

      1%

    • B. 

      7%

    • C. 

      15%

    • D. 

      20%

  • 23. 
    Even though conglomerates are fairly rare amoung sedimentary rocks, they can still tell us quite a lot about past environments, for example the location of ancient beaches.
    • A. 

      True

    • B. 

      False

  • 24. 
    Of the following types of sediments, which is the most fine-grained?
    • A. 

      Gravel

    • B. 

      Sand

    • C. 

      Silt

    • D. 

      Clay

  • 25. 
    A shale, also sometimes called clay- or mudstone, comes about by cementation of slowly settling clay.
    • A. 

      True

    • B. 

      False