character: Machu Picchu
topic: Historical Significance of Incan Civilizations
grade: 6
subject: Social Studies
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character: Agricultural Terracing
topic: Land Use Practices in the Andes
grade: 6
subject: Social Studies
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character: Inca Farmers
topic: Innovations in Agriculture
grade: 6
subject: Social Studies
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character: Andean Mountains
topic: Geography and Environment of Machu Picchu
grade: 6
subject: Social Studies
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