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Quarks are the constituents of:
Development
The process of economic growth, expansion, or realization of social and cultural potential within a country or region.
Railroad Industry
The sector of the economy focused on the construction, operation, and maintenance of railways for the transport of goods and passengers.
Settler Societies
Societies formed by the settlement of people from another land, often displacing indigenous populations and developing new cultural and political orders.
Indigenous People
Ethnic groups who are the original inhabitants of a given region, maintaining traditions or aspects of an early culture that is associated with a specific geographical region.
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