Answer:
I think that it's Rapidly industrialized the Soviet Union(B) I hope that helps.
Answer:
The loss of New Orleans affected the Confederacy because.
They were no longer able to use the Mississippi River to import and export supplies. Also the blockade made it even harder to import things like food ammo and guns also making the confederacy low on man power
i hope this helps
Railroads on the Railways required tracks for the trains to run on them these tracks earlier made up of iron for its heavy duty but soon enough realise that iron was not a very good option for tracks. Meaning drawbacks of using iron for example rusting is it was realised that Steel was a better option in making railroads.
Steel being made out of iron is heavy duty material yet it is not much prone to rusting. Just addition of certain minerals and carbon in iron steel forging is done making it heavy duty material.