Final answer:
Andrew Carnegie was the wealthy immigrant who helped spark the second industrial revolution.
Step-by-step explanation:
The wealthy man who was an immigrant and helped spark the second industrial revolution was **Andrew Carnegie**. Carnegie was born in Scotland and emigrated to the United States in 1848. He played a significant role in the steel industry and built a vast empire through his company, Carnegie Steel Corporation. His innovations and techniques revolutionized the production of steel and contributed to the rapid growth of the industrial sector.
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