character: Emily Stone
topic: Seismic Wave Detection Techniques
grade: 9
subject: Geography
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character: John Doe
topic: Earthquake Importance and Impact
grade: 9
subject: Geography
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character: Lisa Rivers
topic: Plate Tectonics and Earthquakes
grade: 9
subject: Geography
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character: Mark Fields
topic: Types of Seismic Waves and Their Properties
grade: 9
subject: Geography
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