character: Carbon
topic: The Role of Carbon Dioxide in Photosynthesis
grade: 3
subject: Reading
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character: Photosynthesis
topic: How Plants Use Sunlight, Water, and Carbon Dioxide
grade: 3
subject: Reading
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character: Plants
topic: Importance of Carbon in the Environment
grade: 3
subject: Reading
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character: Science
topic: Understanding the Carbon Cycle and Its Importance
grade: 3
subject: Reading
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