Formation of Volcanoes Quiz
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Questions and Answers

Where does Mafic lava typically erupt?

  • At divergent plate boundaries (correct)
  • Under the ocean
  • At convergent plate boundaries
  • In the center of islands

    • What is the main factor contributing to the formation of volcanoes?

  • Conduits carrying gasses and ash
  • Magma rising from the Earth's mantle (correct)
  • Lava accumulating on the Earth's crust
  • Fissures on the Earth's surface

    • Which type of lava is characterized by high silica content and leads to explosive eruptions?

  • Intermediate lava
  • Mafic lava
  • Ultramafic lava
  • Felsic lava (correct)

    • What type of melting process contributes to the formation of magma for volcanoes?

    <p>Flux melting</p> Signup and view all the answers

    How does lava reach the Earth's surface during a volcanic eruption?

    <p>Through fissures in the Earth's crust</p> Signup and view all the answers

    What geological feature often forms at the top of a volcano where magma accumulates?

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

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