Three causes for the emergence of large cities in China during the early 20th Century were:
1. Stopping foreign trade
2. Raise of industries and commerce
3. Development of an intellectual class
Explanation:
Because during the manufacturing age there was apprentices and masters and in the scientific age people were just workers and it is impersonal now because unlike the 1 on 1, it is now a 1 on thousands.
The ratification of the U.S Constitution is the correct answer.
Even though the 'Articles of Confederation and Perpetual Union' had been submitted for ratification in 1777, it wasn't until 1781 that a significant number of states approved it. The ratification of the U.S constitution was a very important event in the midst of the economic depression that the United States was going through.
with an airlift of supplies
