Hello!
1) The #1 social cause of civil war was the debate on slavery.
2) The #1 political cause of the civil war was the states rights
3) The #1 economic cause of the civil war was the expansion of areas for farming. Some country's couldn't provide enough food for the people because there wasn't enough area to farm.
I hope it helped!
<span>The United States experienced major waves of immigration during the colonial era, the first part of the 19th century and from the 1880s to 1920.s Many immigrants came to America looking for better economic opportunity, while some, like the Pilgrims in the early 1600s, came in search of religious freedom.</span>
The answer is Trade.
I hope this was of use for you.
