Technological Innovations · World History

Which invention improved iron production and strengthened industrial machinery?

  1. Puddling process
  2. Cotton gin
  3. Spinning mule
  4. Steamship
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Correct answer: Puddling process

The puddling process removed impurities from iron, producing stronger wrought iron. This was important for machinery and infrastructure.

Difficulty: Medium Question 11 of 20

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