Volcano Assessment Noel Pd 2 2015

36 Questions | Total Attempts: 32

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Volcano Assessment Noel Pd 2 2015 - Quiz

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Questions and Answers
  • 1. 
    As scientists increase the use of technology, they have been able to predict the location and date an earthquake will occur.
    • A. 

      True

    • B. 

      False

  • 2. 
    Volcanoes can form on the ocean floor.
    • A. 

      True

    • B. 

      False

  • 3. 
    There is no relationship between plate tectonics and volcanic activity.
    • A. 

      True

    • B. 

      False

  • 4. 
    Gas trapped in magma under high pressure can cause explosive eruptions.
    • A. 

      True

    • B. 

      False

  • 5. 
    Cinder cone volcanoes produce quiet eruptions.
    • A. 

      True

    • B. 

      False

  • 6. 
    A batholith like the granite domes of Yosemite National Park in California are created when _______________
    • A. 

      Lava forms a thick sheet

    • B. 

      Lava fills a vent

    • C. 

      Magma bodies cool slowly underground before reaching the surface

    • D. 

      Magma in a sill pushes up to form a rock dome

  • 7. 
    A __________ often forms a mountain when layers of lava, ash, and other material builds up around an opening in the Earth.
    • A. 

      Caldera

    • B. 

      Volcano

    • C. 

      Dike

    • D. 

      Batholith

  • 8. 
    Kilauea in Hawaii is the world's most _________ volcano.
    • A. 

      Dormant

    • B. 

      Active

    • C. 

      Explosive

    • D. 

      All the possibilities

  • 9. 
    One factor that determines whether a volcanic erupton will be quiet or explosive is _________________.
    • A. 

      The number of cinder cones

    • B. 

      The height of the volcano's neck

    • C. 

      The amount of water vapor and other trapped gases in the magma

    • D. 

      The amount of tephra in the magma

  • 10. 
    This image of Devil's Tower in Wyoming is an example of a ____________________.
    • A. 

      Caldera

    • B. 

      Volcanic neck

    • C. 

      Dike

    • D. 

      Batholith

  • 11. 
    Magma forms deep inside Earth because of _________________.
    • A. 

      A rise in temperature and a drop in pressure

    • B. 

      A drop in temperature and a rise in pressure

    • C. 

      A rise in temperature and increase in pressure

    • D. 

      A drop in temperature and a drop in pressure

  • 12. 
    Some volcanoes form islands like Iceland as __________ flows from the rifts in the seafloor and builds up high enough to break the ocean's surface.
    • A. 

      Lava

    • B. 

      Tephra

    • C. 

      Water

    • D. 

      Gas

  • 13. 
    The image below shows magma that has been forced into a crack parallel to rock layers and hardens.  This land form is called a __________.
    • A. 

      Dike

    • B. 

      Batholith

    • C. 

      Sill

    • D. 

      Volcanic neck

  • 14. 
    The image below shows magma that has been forced into a crack that cuts across rock layers and hardens.  This land form is called a ___________.
    • A. 

      Dike

    • B. 

      Batholith

    • C. 

      Sill

    • D. 

      Volcanic neck

  • 15. 
    Differences in _______________ cause a volcanic neck to form.
    • A. 

      Eruptive forces

    • B. 

      Water content

    • C. 

      Resistance to erosion

    • D. 

      Silica content

  • 16. 
    Most of the rock in Yosemite National Park is an exposed _________________.
    • A. 

      Dike

    • B. 

      Sill

    • C. 

      Batholith

    • D. 

      Volcanic neck

  • 17. 
    Basaltic magma produces nonexplosive eruptions such as those at ___________________.
    • A. 

      Mount St. Helens

    • B. 

      Mount Pinatubo

    • C. 

      Kilauea

    • D. 

      Paracutin

  • 18. 
    A steep walled depression around a volcano's vent is called a _______________.
    • A. 

      Caldera

    • B. 

      Crater

    • C. 

      Volcanic neck

    • D. 

      Dike

  • 19. 
    In the image below, Parcutin, with its steep-sided loosely packed tephra, is an example of a __________________ volcano.
    • A. 

      Composite

    • B. 

      Shield

    • C. 

      Cinder cone

    • D. 

      Hot spot

  • 20. 
    A Volcanologist examining the Soufriere Hills volcano in Montserrat, classifies the volcano as a  ______________ volcano after he discovers the volcano is comprised of alternating layers of tephra and lava.
    • A. 

      Shield

    • B. 

      Cinder cone

    • C. 

      Hot spot

    • D. 

      Composite

  • 21. 
    Silica rich magma______________
    • A. 

      Can form at subduction zones

    • B. 

      Produces explosive eruptions

    • C. 

      Is thick and gas gets trapped, causing pressure to build up

    • D. 

      All the possibilities

  • 22. 
    ____________ magma is silica poor and causes quiet, nonexplosive eruptions.
    • A. 

      Basaltic

    • B. 

      Andesitic

    • C. 

      Granitic

  • 23. 
    ____________ magma has a moderate amount of silica and can create composite cone volcanoes.
    • A. 

      Basaltic

    • B. 

      Andesitic

    • C. 

      Granitic

  • 24. 
    Pahoehoe and AA lavas are both ____________________.
    • A. 

      Basaltic

    • B. 

      Andesitic

    • C. 

      Granitic

  • 25. 
    _____________________ pours freely from volcanic vents and runs down the sides of a shield volcano
    • A. 

      Pahoehoe

    • B. 

      AA