Volcanoes Quiz Questions: Trivia Test!

23 Questions | Total Attempts: 130

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Volcanoes Quiz Questions: Trivia Test!

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Questions and Answers
  • 1. 
    What effect does viscosity have on a volcanic eruption?
  • 2. 
    Which of the following causes volcanoes to be explosive?
    • A. 

      Viscosity of magma

    • B. 

      Outside temperature

    • C. 

      Dissolved gases

  • 3. 
    Please check off the characteristics of Basaltic Magma that are true.
    • A. 

      It has a low viscosity

    • B. 

      It explodes violently

    • C. 

      It explodes quietly

    • D. 

      It occurs at rifts, and oceanic hot spots such as Hawaii

  • 4. 
    Which of the following is UNTRUE about Andesitic Magma?
    • A. 

      It has an intermediate viscosity

    • B. 

      It has a high viscosity

    • C. 

      It sometimes explodes violently

    • D. 

      It is located at subduction boundaries

  • 5. 
    Which of the following in UNTRUE about Rhyolitic magma?
    • A. 

      It has a high viscosity

    • B. 

      It is very explosive

    • C. 

      It is located at continental hot spots such as Iceland

    • D. 

      It is produced by shield volcanoes

  • 6. 
    What is tephra or pyroclastic material?
    • A. 

      Material expelled from a volcano during an eruption

    • B. 

      The same thing as magma

  • 7. 
    Which of the following is UNTRUE about Ash Fall?
    • A. 

      It gets thrown into the atmosphere and can be blown many miles away.

    • B. 

      Can change the global climate

    • C. 

      They are microscopic

    • D. 

      It can be felt globally.

  • 8. 
    What is UNTRUE about Lapilli or Cinders?
    • A. 

      They are similar to pebbles

    • B. 

      They can be 2 - 64 mm. size

    • C. 

      They can change global climate

  • 9. 
    Check all of the boxes that apply to Lava Bombs.
    • A. 

      They can be larger than 64 mm in length

    • B. 

      Car sized ones can be thrown 1 km, while smaller ones can be thrown 1-5 km away.

    • C. 

      Lava bombs have magma inside which explode when they hit the ground

  • 10. 
    Pahoehoe is slow-moving, thick and its temperatures are cooler.
    • A. 

      True

    • B. 

      False

  • 11. 
    Pillow Lava forms when volcanoes erupt underwater, resulting in round masses that look like pillows.
    • A. 

      True

    • B. 

      False

  • 12. 
    Aa Lava has cooler temperatures, is thick, chunky and slow moving.
    • A. 

      True

    • B. 

      False

  • 13. 
    ____________ are volcanic mudflows that are formed from melted __________ and ___________ at the top of the volcano. They are extremely deadly and move very fast.
  • 14. 
    __________________________ are superheated gas, ash and volcanic debris that flow down the mountain at speeds of 100 km/hr.
  • 15. 
    Check off all of the ways that are used to predict volcanic eruptions.
    • A. 

      Earthquakes

    • B. 

      Tornadoes

    • C. 

      Gas emissions

    • D. 

      Deformation

  • 16. 
    Check off the following boxes that apply to explosive eruptions.
    • A. 

      Composite volcanoes, andesitic lava, high viscosity, low temperatures, high gas content

    • B. 

      Pyroclastic flows, ash plunes, lahars

    • C. 

      Occurs at convergent boundaries (o-o, o-c) and at subduction zones

    • D. 

      Occur at divergent boundaries

  • 17. 
    Check off the following boxes that apply to quiet eruptions.
    • A. 

      Shield volcanoes, mafic lava, low viscosity, high temperatures

    • B. 

      Lava flows, lava fountains, lava pools

    • C. 

      Occurs at divergent boundaries and oceanic hot spots

    • D. 

      Pyroclastic flows and lahars

  • 18. 
    Check off all of the true statements about Composite volcanoes.
    • A. 

      Steep sides, usually explosive, pyroclastic materials and lava flows

    • B. 

      Ex. Cascade Mountains

    • C. 

      Basaltic Lava

    • D. 

      Alternating layers of andesitic lava and tephra

  • 19. 
    Check off all of the following false statements about shield volcanoes.
    • A. 

      Cylindrical shape

    • B. 

      Gently sloping sides, ONLY lava flows, quiet eruptions, mafic lava

    • C. 

      Hawaii

  • 20. 
    Check off all of the following about Cinder volcanoes.
    • A. 

      Steep/gentle sloping sides

    • B. 

      Pyroclastic materials and sometimes explosive

    • C. 

      Ex. Sunset Crater, AZ

    • D. 

      Andesitic and mafic lava and tephra - cinders and lapilli

  • 21. 
    Calderas form from a collapsed volcano. There is a lake in the empty crater and below there is a magma chamber. Some are located at Yellowstone.
    • A. 

      True

    • B. 

      False

  • 22. 
    Check off the following boundaries where Shield Volcanoes are located.
    • A. 

      Divergent boundaries

    • B. 

      Convergent boundaries

    • C. 

      Oceanic hotspots

  • 23. 
    Check off the following places where composite volcanoes are located.
    • A. 

      Convergent boundaries (o-o, o-c)

    • B. 

      Rifting

    • C. 

      Subduction zones