C. huge tunnels were built for sewer lines
The transcontinental railroad was a key role in the industrial revolution because it was the only way for supplies to get from one part of the country to the other. The train was also the fastest mode of transportation at the time so it was also important for travel. I hope this helped.
During the Renaissance, the European economy grew dramatically, particularly in the area of trade. Developments such as population growth, improvements in banking, expanding trade routes, and new manufacturing systems led to an overall increase in commercial activity.
Answer:
The Russian Revolution happened in 1917.
Explanation:
The Russian Revolution of 1917 was an important event in twentieth-century world history. France's state revolution in 1789 AD affected Europe's life on a deeper level by propagating the spirit of freedom, equality and brotherhood. The pervasiveness of the Russian Revolution was much broader than all the political events so far.
This revolution not only brought an end to autocratic, monocratic, autocratic, zarchic rule, but ended the economic and social power of the elite landlords, feudalists, capitalists etc. and established the first power of workers and peasants in the world.
Southern states wanted new slave territories, while the north wanted to contain the spread of slavery. while western expansion contributed to growing sectional tensions between the north and south from 1800-1820
