<span>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.</span>
Answer:
The Proclamation of 1763 allowed the American colonies to expand their trade with the nations of Europe.
Explanation:
This is true due to the fact that,Americans where not trading with the European Nations intially. It was as a result of this Proclamation that, it was made possible leading to the establishing of the trade relations between both continents.