character: Dr. Sarah Nguyen
topic: Seismic Waves and Earth's Inner Composition
grade: 10
subject: Geography
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character: Dr. Emily Carter
topic: Understanding Earthquake Waves
grade: 10
subject: Geography
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character: Professor James Wright
topic: The Structure of the Earth's Layers
grade: 10
subject: Geography
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character: Mr. Alex Johnson
topic: How Seismology Helps Us Learn about the Earth
grade: 10
subject: Geography
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