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Social Studies .Concept: Boundary-Gradient, Boundary: is the line that separates one region from another. Gradient is the technical term for the structure of the boundary Social Organization, Civic Engagement, Social Order, Nation State, Economic Activity, Check And Balance, Total War, Political System, Mississippi River
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Boundary-Gradient

Social Studies .Concept: Boundary-Gradient, Boundary: is the line that separates one region from another. Gradient is the technical term for the structure of the boundary
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