Unit 10: Option D — Geophysical Hazards
Topic 10.2: Geophysical hazard risks Questions
Practice 20 exam-style questions for IB Geography Topic 10.2. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Outline4 marks
Outline two volcanic hazards and describe how each can harm people or property.
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The table below records mass-movement events in a mountain valley over ten years, grouped by slope angle.
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The table summarises the area covered by each lava-thickness band after a recent eruption, and the line of longitude each band sits nearest.
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The deadliest volcanic hazard, because it is fast and super-hot, is the…
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Explain why a shallow-focus earthquake usually does more surface damage than a deep-focus earthquake of the same magnitude.
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Explain why a pyroclastic flow usually causes far more deaths than a lava flow from the same volcano.
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Suggest two reasons why an earthquake-triggered landslide kills far more people in one country than a similar landslide does in another.
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Explain why the largest and most frequent earthquakes occur at destructive (subduction) plate margins.
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Outline how a volcanic eruption or an earthquake can trigger a mass movement.
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Explain how a major landslide can affect the social and economic well-being of a community.
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Outline two secondary hazards of a major earthquake, and explain how the severity of each changes with distance from the epicentre.
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The largest and most frequent earthquakes mostly occur at…
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On a distribution diagram, the modal class is the band with the…
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Suggest two reasons why two earthquakes of similar magnitude can cause very different numbers of deaths.
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An earthquake destroyed hospitals, schools and homes across a city. Outline two long-term impacts this damage could have on the society there.
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Which secondary hazard can stay destructive thousands of km from the epicentre?
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A hazard map plots landslide sites by altitude and gives a scale of 1 cm to 250 m. The table lists how many landslide dots fall in each altitude band.
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Which measure describes how strongly the shaking is felt at one place?
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A mass movement is the downslope movement of rock or soil under…
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A volcanic mudflow of ash and water that races down valleys is a…
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