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The knowledge about interior of the earth is obtained through direct sources and indirect sources. Direct sources include rock materials from mining areas and molten magma from volcanic eruptions. Besides, scientists are working on “Deep Ocean drilling Project” and “Integrated Ocean Drilling Projection:
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Definitions of commonwealth. a political system in which the supreme power lies in a body of citizens who can elect people to represent them. synonyms: democracy, republic.
Russian Empire was the biggest...!
The CCC (Civilian Conservation Corps) employed about 30,000+ people, who helped build things like dams, roads, bridges, fences, signage, and campgrounds in South Carolina.
