The greatest factor in the development of "skyscrapers" was A) the invention of elevators. B) availability of cheap iron. C) the invention of escalators. Eliminate D) recovery from the Great Depression.

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Remington

History

5 October, 17:15

The greatest factor in the development of "skyscrapers" was A) the invention of elevators. B) availability of cheap iron. C) the invention of escalators. Eliminate D) recovery from the Great Depression.

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Kiana Farley · Answer 1

The correct answer is B.

The development of cheap iron in the US was the major factor that lead to the building of skyscrapers. Being able to produce iron cheaply can be contributed to Andrew Carnegie. This American business mogul perfected the Bessemer process in several factories across the eastern part of the US. From there, he was able to sell cheap iron to American businesses for the purpose of growing their empire.