character: Marie Curie
topic: Contributions to Chemistry and Physics
grade: 11
subject: Chemistry
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character: Chemical Contaminants
topic: Sources and Effects of Water Pollution
grade: 11
subject: Chemistry
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character: Marie Curie
topic: Radioactivity and Its Implications in Environmental Chemistry
grade: 11
subject: Chemistry
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character: Aqueous Solutions
topic: Importance of Clean Water and Chemical Analysis
grade: 11
subject: Chemistry
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