character: Dr. Helen Rivers
topic: Hydrologist, Water Quality Assessment Techniques
grade: 12
subject: Geography
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character: Mr. Joe Wells
topic: Impact of Human Activity on Water Sources
grade: 12
subject: Geography
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character: Ms. Anna Stream
topic: Innovative Technologies in Water Quality Monitoring
grade: 12
subject: Geography
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character: Professor Mike Clearwater
topic: Understanding the Water Cycle and Its Importance
grade: 12
subject: Geography
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