Question

what of the following revolutionized the steel industry? (1 point) the bessemer process the switchboard the mail - order catalog the bell company

Explanation:

The Bessemer Process was a major breakthrough in steel - making. It allowed for the mass - production of steel by blowing air through molten iron to remove impurities, thus revolutionizing the steel industry. The switchboard is related to electrical distribution, the mail - order catalog to commerce, and the Bell Company to telecommunications.

Answer:

the Bessemer Process