What was the bessemer converter used for and how did it revolutionize industry and production?

The Bessemer converter was the first inexpensive industrial process and was used for the mass production of steel. It was an important process because it helped to make stronger rails for railroads, stronger metal machines and architectural structures like skyscrapers.

answer; /// i believe that they became successful farmers; ///////////////

#2 the answer is d

#3 the answer is a

#4 the answer is b