Answer:
Railroads used the iron to build railroad tracks but iron was weak and also dangerous. Soon people then realized that steel was a better material for tracks because it was able to hold more weight which then allowed heavier cargo. Railroads also transported mineral needed to forge steel.
Explanation:
The distribution of power. The Antifederalists thought that the Constitution would give the government ultimate power and eventually lead it into a dictatorship.
The economic restructuring program Mikhail Gorbachev used was "Glasnost".