Lesson 3.1.5.3
3.1.5.3 Volcanic hazards Quiz: AQA Geography, Unit 1
20 questions
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Lesson 3.1.5.3, Volcanic hazards: 20 multiple choice questions for the AQA Geography (7037), Unit 1: Physical geography, written with Revision Ninja.
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The 20 questions
-
What is the alternative term for a high-speed, superheated pyroclastic flow?
- Lahar
- Jökulhlaup
- Nuée ardente
- Tephra
-
What volcanic hazard is a fast-moving mudflow composed of ash and water?
- Tephra
- Pyroclastic flow
- Lahar
- Lava flow
-
What general term describes all airborne solid material ejected during a volcanic eruption?
- Ignimbrite
- Pahoehoe
- Lahar
- Tephra
-
Which type of lava has low viscosity and produces gentle shield volcanoes?
- Rhyolitic
- Basaltic
- Granitic
- Andesitic
-
What feature of pyroclastic flows makes them the most lethal volcanic hazard?
- High acidity
- Extreme speed
- Slow movement
- Deep freezing
-
Which volcanic gas reacts with atmospheric water vapour to form acid rain?
- Carbon monoxide
- Methane
- Carbon dioxide
- Sulphur dioxide
-
Where are the majority of the world's active volcanoes located?
- Mid-Atlantic Ridge
- East African Rift
- Alpine-Himalayan belt
- Pacific Ring of Fire
-
What type of scale is used for the Volcanic Explosivity Index?
- Absolute scale
- Linear scale
- Exponential percentage scale
- Logarithmic scale
-
Which event is classified as a secondary impact of a volcanic eruption?
- Agricultural famine
- Pyroclastic flow
- Ash fallout
- Lava flow deposition
-
Which short-term response is used to predict a volcanic eruption before it occurs?
- Ground deformation monitoring
- Lava diversion barriers
- Emergency aid distribution
- Evacuation route planning
-
Which management strategy is an example of a long-term response to volcanic hazards?
- Emergency food distribution
- Land-use zoning
- Temporary shelter provision
- Search and rescue
-
Which action is an example of human adaptation to a volcanic hazard?
- Evacuating coastal towns
- Diverting lava channels
- Monitoring gas emissions
- Planting ash-tolerant crops
-
Why does volcanic ash fallout result in the immediate closure of airspace?
- High toxic acidity
- Jet engine damage
- Ground liquefaction
- Runway thermal melting
-
What is the primary limitation when using monitoring data to predict volcanic eruptions?
- Sensor failure
- Gas absorption
- Magma cooling
- Timing uncertainty
-
Which hazard caused widespread forest destruction during the 1980 Mount St Helens eruption?
- Glacial outburst flood
- Deep-sea tsunami
- Lateral blast
- Basaltic lava flow
-
Why does accumulated volcanic ash fallout lead to structural roof collapse?
- Rapid wind force
- High weight load
- Chemical corrosion
- Extreme heat transfer
-
Which type of magma causes highly explosive volcanic eruptions at destructive margins?
- Viscous rhyolitic magma
- High-temperature mafic magma
- Fluid basaltic magma
- Low-silica magma
-
Which record is most useful for assessing future volcanic risk at a dormant volcano?
- Local population density
- Daily temperature variation
- Soil pH levels
- Historical eruption frequency
-
What is the annual probability of a volcanic hazard with a 40-year recurrence interval?
- 2.5 per cent
- 0.25 per cent
- 40 per cent
- 4.0 per cent
-
Which volcanic landform is typically formed by repeated effusive eruptions over a hotspot?
- Composite cone
- Caldera basin
- Lava dome
- Shield volcano
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