Which of the following made Song iron production in the eleventh century equal to that of Europe in the eighteenth century?
A) Using sulfur and charcoal in smelting
B) Harnessing water buffalo to bellows
C) Using piston-driven bellows
D) Mastering techniques for controlling explosions and high heat

Question

Quizplus · Accepted Answer

Using piston-driven bellows allowed for a more consistent flow of air to the furnace, which increased the temperature and efficiency of iron production. This technology was not used in Europe until the eighteenth century, making Song iron production equal to Europe's at that time.

Which of the Following Made Song Iron Production in the Eleventh