character: Ms. Sarah Johnson
topic: Understanding Atmospheric Pressure
grade: 9
subject: Science
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character: Mr. David Smith
topic: Introduction to Weather Patterns
grade: 9
subject: Science
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character: Dr. Emily Carter
topic: Basics of Circulatory Air Systems
grade: 9
subject: Science
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character: Mrs. Lisa Green
topic: Effects of Altitude on Air Pressure
grade: 9
subject: Science
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