Gine1zAllisacomp Gine1zAllisacomp

01-10-2016
History

contestada

Which of the following was a new development of the second industrial revolution?
a. improved putting out system
b. invention of the cotton gin
c. improvement of the steam engine
d. new process for making steel

Respuesta :

melodydavis2k12 melodydavis2k12

25-06-2018

I think it is the letter d, I am uncertain though

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