character: Ms. Johnson
topic: Impact of pollutants on marine life
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Effects of chemical runoff on aquatic ecosystems
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Bioaccumulation of toxins in marine species
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Chemical reactions in ocean acidification
grade: 11
subject: Chemistry
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