During the late 1800s major improvements to a nationwide system of trade were made possible how?

Completion of transcontinental railroads.

Explanation:

One of the main reasons why the 1800s saw major improvements to trade on a nationwide scale was due to the completion of the transcontinental railroads. The railroad completely transformed the way the country did business. It allowed goods and people to travel efficiently everywhere in the country. It also allowed companies to find new markets to sell their products. The railroad connected the country in an unprecedented and extremely significant way.

to regulate production on things such as fuel and production

overview. prohibition was a nationwide ban on the sale and import of alcoholic beverages that lasted from 1920 to 1933. prohibition led directly to the rise of organized crime. the twenty-first amendment, ratified in december 1933, repealed prohibition.