Respuesta :
Petroleum contributed to economic expansion in the United States as it resulted in economic growth.
The population of the country grew, the demand for goods and services expanded, and the country quickly industrialized. The refinement of petroleum, the production of steel, and the development of electrical power were among the numerous new businesses that developed as the older ones grew. Railroads greatly expanded, integrating even rural areas of the nation into a market economy on a national scale.
American society was altered by industrial progress. It created a thriving middle class and a new class of affluent industrialists. Additionally, a significantly larger blue collar working class was created. Petroleum produced economic growth, which aided in economic expansion in the US. Millions of recently arrived immigrants and much more migrants from rural regions made up the work force that enabled industrialization. American culture expanded its diversity to unprecedented levels.
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