Answer: The expansion of railway lines throughout the West
Explanation:
To say that the Railroad only contributed minutely to the development of the United States as a nation would be a gross injustice. The establishment of railway lines to any part of the country brought prosperity and drove its development.
This was especially true for states in the west such as Washington, Idaho, Montana, Utah and Wyoming. With the expansion of railway lines throughout the west and into these territories, their populations increased and enabled the states to press for and get awarded with statehood.
Im not sure if i need to complete this either but im actually getting a lot of po!nts answering old questions sorry if im spamming too much...
No, it is false that the music industry shrank during the 1970s since few people were interested in disco, since in fact the exact opposite happened: Many people were wildly interested in disco so the music industry boomed.
A) coinage of money
the rest are stuff regulated by the state