Political - British taking over Northern Ireland.
The majority of Northern Ireland's population were unionists, who wanted to remain within the United Kingdom. (The Norman invasion of the late 12th century )
Economic - Failure of potato crop. (The Great Famine)
Religious - discrimination against the Catholic/nationalist minority by the Protestant/unionist government and police force.
Answer : Mainly because economic problems. Since potatoes were no longer available in Ireland, the Irish would starve to death since potatoes were their main resource as food.
This brings to Irish migration to the US because it offered low paying jobs for immigrants. In the end, the Irish had minimum money and enough food for themselves in America, unlike in Ireland.
You would write down the gist statements or you can read it again and annotate important details.
These are the formal ways...
1) Get 2/3rds majority vote in both houses of Congress to propose a Constitutional amendment and a 3/4ths vote of the State Legislature to ratify the amendment.
2) Call a Constitutional convention by 2/3rds of the state legislatures with a 3/4ths vote to ratify the amendment.
The correct answer of this question America's victory at Yorktown helped the Continental Army remove all British barracks from New Jersey. This was the final battle during the American Revolution. The Americans won with the help of the French.