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 High School
- Human actions - how they modify the physical environment
- Physical systems - how they affect human systems
- Changes that occur in the meaning, use, distribution, and importance of resources
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Middle School
- Human actions - how they modify the physical environment
- Physical systems - how they affect human systems
- Changes that occur in the meaning, use, distribution, and importance of resources
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Elementary School
- Human actions - how they modify the physical environment
- Physical systems - how they affect human systems
- Changes that occur in the meaning, use, distribution, and importance of resources
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