Unit 10: Option D — Geophysical Hazards
Topic 10.1: Geophysical systems Questions
Practice 20 exam-style questions for IB Geography SL Topic 10.1. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Identify2 marks
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The table lists changes to the physical landscape shown on a diagram of liquefaction effects after an earthquake.
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A tsunami is first triggered by…
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Shield-volcano lava spreads across a wide area because it is…
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A field sketch records the evidence left on a hillside after a mass movement.
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Explosive composite volcanoes form mainly at…
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Very large earthquakes are rare mainly because…
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Unlock Question7Outline2 marks
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Outline one physical factor that influences how fast a mass movement travels down a slope, and explain its effect.
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The table gives data read from a 1:100 000 topographic map of a volcanic area. Use it to answer the parts below.
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Unlock Question9Outline2 marks
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Outline one way people can make a slope more likely to fail, and briefly explain how it does so.
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Which human activity makes a slope more likely to fail?
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Very high-magnitude earthquakes happen only rarely. Outline one reason for this and develop how that process controls their frequency.
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Lava from a shield volcano flows out across a wide area. Outline one reason for this and develop how it makes the lava spread so far.
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Unlock Question13Suggest3 marks
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A tsunami struck a coast minutes after a large offshore earthquake. Suggest how the earthquake produced the tsunami.
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Unlock Question14Explain4 marks
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Explain how the type of plate margin controls the characteristics of the volcanoes that form there.
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Mass movement is the downhill movement of rock and soil driven by…
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Explain how the type of plate margin affects the characteristics of the earthquakes that occur there.
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Explain how building and quarrying on a hillside can make a mass movement more likely.
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Unlock Question18Outline4 marks
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Outline two ways in which earthquakes and volcanoes are distributed in relation to plate margins.
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Unlock Question19Outline4 marks
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Outline two physical factors, other than water content, that can make a slope fail quickly.
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A landslide struck a hillside soon after several days of rain. Outline one physical factor that helped this mass movement happen so quickly, and explain how it speeds the onset.
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