Volcano Formation and Eruption
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Questions and Answers

What type of volcano is Mount Etna in Sicily?

  • Maar-diatreme
  • Shield
  • Composite
  • Cinder cone (correct)
  • What type of eruption results from a fissure, or crack, in the Earth's crust?

  • Fissure eruption (correct)
  • Volcanic pipe eruption
  • Caldera eruption
  • Lava dome eruption
  • What type of volcano is Mount St. Helens in Washington?

  • Shield (correct)
  • Cinder cone
  • Composite
  • Maar-diatreme
  • What forms when a volcano's lava is very thick and forms a pile on top of the volcano?

    <p>Lava dome</p> Signup and view all the answers

    What type of volcanic landform results from thick, gelatin-like lava that does not flow easily?

    <p>Lava dome</p> Signup and view all the answers

    What causes the formation of a caldera?

    <p>Imploding magma chamber</p> Signup and view all the answers

    What type of volcanic eruption results from a build-up of gas?

    <p>Maar-diatreme eruption</p> Signup and view all the answers

    What type of volcano is Mauna Loa in Hawaii?

    <p>Shield</p> Signup and view all the answers

    What is the hot, fluid rock that escapes from a volcano during an eruption called?

    <p>Lava</p> Signup and view all the answers

    How is a volcano formed?

    <p>By the cooling and hardening of magma</p> Signup and view all the answers

    What causes a volcanic eruption?

    <p>Pressure build-up under the Earth's crust</p> Signup and view all the answers

    What forms a volcanic pipe?

    <p>Accumulation of gas and magma under the Earth's crust</p> Signup and view all the answers

    What is the vent or opening in the crust that allows gas, magma, and ash to be released during an eruption?

    <p>Vent</p> Signup and view all the answers

    Where do most volcanoes form?

    <p>Along lines where pieces of the Earth's crust meet</p> Signup and view all the answers

    What is released during a volcanic eruption?

    <p>Gas, lava, and ash</p> Signup and view all the answers

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