Answer:
It is used to create railroads.
Explanation:
Before the invention of railroads, the only method of travelling from one state to another is by using Caravans. This was very hard to do because it could took months for traders to reach other states by using horses.
The invention of railroads allowed people to reach states at a much faster time. It connected different areas in United States and made it easier for people to distribute their product to another states.
Answer:
World War 1
Explanation:
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I.
as according to https://en.wikipedia.org/wiki/American_entry_into_World_War_I
The U.S. was trying to not enter WW1 for at least 2 years
The event that made it apparent that Russia was desperately in need of reform is : A. the crimean war Crimean war happened in 1853 - 1856 between Russia against the alliance of france, british, sardinia, and ottoman empire , which caused by The will to take control of the christian holly land from the hand of the ottoman empire
