B.
The Irish Potato Famine, which occurred from 1845 to 1852, led to a mass migration of Irish citizens to the United States after a failed potato crop.
On the census scales, the degree indicates the same temperature change as one kelvin.
Answer is One kelvin.
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4. Cotton Gin harvested cotton
5. Because the cotton gin could harvest so much more, cotton farmers would buy and work more slaves for more profit.
6. A few major ones were immigration, making railroads, and using tariffs to ward foreign countries away from competing with the American market.
7. Industrial Revolution, I think the answer they want you to give is being blocked off from trading with England and France.
Economy crisis between various actors .
