You allready got the answers to this
Answer:
Hopefully this helps
Explanation:
By the time of the Industrial Revolution, there were more people than ever before. A main reason for this was 18th century agricultural improvements, which all but ended the periodic famines that had kept down European populations. From 1750 to 1850, the population of England alone nearly tripled.
Answer:
OC. immigrants coming to America
Explanation:
The phrase that describes what the "push and pull" theory was about immigrants coming to America.
Mao Zedong united the food production, trade and transportation systems.
What do you need to know about it?