mediumFPSCNTSCSSPPSCFamous Inventions & Inventors
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Correct Answer: A: James Watt
Explanation: The correct answer is A: James Watt. James Watt significantly improved the steam engine in the 1760s-1770s, making it more efficient for industrial use. While Thomas Newcomen built an earlier engine, Watt's separate condenser design revolutionized industry.