character: Mr. Lee
topic: The Role of Seismographs in Measuring Waves
grade: 9
subject: Geography
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character: Ms. Smith
topic: Understanding Earthquake Waves and Their Impact
grade: 9
subject: Geography
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character: Dr. Johnson
topic: The Science Behind Seismology and Wave Detection
grade: 9
subject: Geography
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character: Prof. Nguyen
topic: How Seismographs Help Predict Earthquake Activity
grade: 9
subject: Geography
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