Geology 111: Understanding The Planet Earth Exam Sample Test

62 Questions | Total Attempts: 106

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Geology 111: Understanding The Planet Earth Exam Sample Test

How much do you understand the planet earth? This quiz can help. Concerning this quiz, you need to recognize the orbit of the earth, the innermost four planets in the solar system, how many minerals exist on earth, what are crystalline substances, what is a mineral, what is the most abundant volcanic rock, and at what temperature do rocks melt. Learn more about our planet by taking this quiz.


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

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