Multiple Choice Questions

The main hazard of an eruption that forms a large caldera is:
  • felsic and intermediate lava flows and tephra
  • collapse of the roof of a magma chamber as magma erupts
  • burning, building collapse, and suffocation from an eruption column and pyroclastic flows
  • large amounts of rain and snowmelt mix with loose ash on steep slopes
Which of the following are hazards associated with scoria cones?
  • all of these are used to monitor volcanoes
  • Caldera-forming
  • all of these
  • gabbro
The classic volcano shape is displayed by:
  • are composed of lava flows, pyroclastic material, and mudflows
  • collapse of the roof of a magma chamber as magma erupts
  • Pacific Ring of Fire
  • a composite volcano
Hazards associated with basaltic lava flows and eruptions are:
  • all of these
  • seismic shaking
  • felsic and intermediate lava flows and tephra
  • all of these are used to monitor volcanoes
Which of the following types of eruptions is among the most deadly of natural disasters?
  • seismic shaking
  • gabbro
  • Caldera-forming
  • all of these
Volcanic mudflows (lahars) are common on composite volcanoes because:
  • are composed of lava flows, pyroclastic material, and mudflows
  • all of these are used to monitor volcanoes
  • basalt
  • large amounts of rain and snowmelt mix with loose ash on steep slopes
Which of the following are characteristics typical of volcanic domes?
  • all of these are used to monitor volcanoes
  • Caldera-forming
  • gabbro
  • all of these
Some scientists think that Yellowstone could cause a future disaster because:
  • all of these are used to monitor volcanoes
  • Pacific Ring of Fire
  • all of these
  • seismic shaking
Composite volcanoes are so called because they:
  • large amounts of rain and snowmelt mix with loose ash on steep slopes
  • are composed of lava flows, pyroclastic material, and mudflows
  • a composite volcano
  • collapse of the roof of a magma chamber as magma erupts
What was the most damaging type of eruption that occurred at Vesuvius in Italy?
  • One or more pyroclastic flows hit the city of Pompeii.
  • all of these are used to monitor volcanoes
  • movement of North America over a mantle plume
  • felsic and intermediate lava flows and tephra
What types of rocks would be most common in a composite volcano?
  • all of these are used to monitor volcanoes
  • felsic and intermediate lava flows and tephra
  • large amounts of rain and snowmelt mix with loose ash on steep slopes
  • all of these
The largest concentration of composite volcanoes on Earth is located along the:
  • Pacific Ring of Fire
  • all of these
  • a composite volcano
  • seismic shaking
Which of the following commonly precede a volcanic eruption?
  • all of these are used to monitor volcanoes
  • gabbro
  • Caldera-forming
  • all of these
Which of the following are dangerous aspects of composite volcanoes?
  • Caldera-forming
  • gabbro
  • all of these
  • all of these are used to monitor volcanoes
The main cause of caldera collapse is:
  • a composite volcano
  • burning, building collapse, and suffocation from an eruption column and pyroclastic flows
  • collapse of the roof of a magma chamber as magma erupts
  • are composed of lava flows, pyroclastic material, and mudflows
Volcanic domes commonly form from all of the following rocks except:
  • large amounts of rain and snowmelt mix with loose ash on steep slopes
  • all of these
  • gabbro
  • basalt
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Multiple Choice Questions
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