Final answer:
The industrial growth of America after the Civil War was driven by the expansion of railroads, immigration and population growth, and the discovery of new natural resources.
Step-by-step explanation:
The industrial growth of the United States after the Civil War was influenced by several factors. One major factor was the expansion of the railroad system, which improved transportation and allowed for the efficient movement of goods and resources across the country. Another factor was the increase in immigration and population growth, providing a larger labor force for industrial production. Lastly, the discovery and exploitation of new natural resources, such as oil and coal, fueled the growth of industries like steel, oil refining, and manufacturing.
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