character: Dr. Stevens
topic: The Role of Seismic Waves in Earthquake Studies
grade: 11
subject: Geography
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character: Professor Johnson
topic: Understanding Plate Tectonics and Earthquakes
grade: 11
subject: Geography
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character: Dr. Lee
topic: Types of Seismic Waves and Their Impacts
grade: 11
subject: Geography
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character: Mr. Adams
topic: Measuring Earthquake Magnitudes: The Seismograph
grade: 11
subject: Geography
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