Multiple Choice
What was the innovation that significantly improved the quality of iron in the eighteenth century?
A) Bessemer's converter
B) the French practice of using a double compartment furnace with one compartment for the coke or coal, the other for the iron
C) the Siemens-Martin open hearth process
D) the application of steam engines to pump water from mines
E) the conversion of cast iron into wrought iron
Correct Answer:

Verified
Correct Answer:
Verified
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