character: Professor Earth
topic: Surface Waves and Their Effects
grade: 10
subject: Geography
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character: Seismic Sally
topic: Types of Surface Waves
grade: 10
subject: Geography
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character: Waves Wanda
topic: Impact of Surface Waves on Structures
grade: 10
subject: Geography
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character: Tremor Tim
topic: Measuring Surface Wave Intensity
grade: 10
subject: Geography
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