Volcanoes and PHIVOLCS Quiz
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Questions and Answers

Which type of volcano is described as not high, having a broad shape, and almost no slope?

  • Shield volcano (correct)
  • Cinder cone volcano
  • Stratovolcano
  • Caldera volcano
  • What type of eruption is characterized by pressurized gases expanding rapidly, breaking rocks apart violently?

  • Plinian eruption
  • Explosive eruption (correct)
  • Effusive eruption
  • Phreatomagmatic eruption
  • During which eruption type does magma gently 'ooze' out, producing lava flows?

  • Hydrothermal eruption
  • Strombolian eruption
  • Vulcanian eruption
  • Effusive eruption (correct)
  • What type of eruption is a result of the contact between water and magma, leading to very explosive outcomes?

    <p>Phreatic eruption</p> Signup and view all the answers

    Which type of eruption results from the fragmentation and explosion of a lava plug in a volcanic conduit or from the rupture of a lava dome?

    <p>Phreatomagmatic eruption</p> Signup and view all the answers

    What type of volcano is characterized by explosive eruptions that send ash high into the atmosphere?

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

    What type of volcanoes are tall, symmetrical, and have steep sides?

    <p>Composite volcanoes</p> Signup and view all the answers

    Which type of volcano is characterized by eruptions with hot gases, ash, lava, and pumice?

    <p>Composite volcanoes</p> Signup and view all the answers

    What is the distinguishing feature of cinder volcanoes?

    <p>Formed from small pieces of erupting lava</p> Signup and view all the answers

    Which type of volcano is unlikely to erupt again even though it hasn't erupted for a long time?

    <p>Dormant volcanoes</p> Signup and view all the answers

    What is the main responsibility of PHIVOLCS according to the text?

    <p>Mitigate disasters from volcanic eruptions and earthquakes</p> Signup and view all the answers

    Why are composite volcanoes believed to have caused the most fatalities?

    <p>Their explosive nature and high numbers</p> Signup and view all the answers

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