During the rise of industrialization in the 1840s, the majority of immigrants came from

Ireland and Germany

Explanation:

I got it right on the test

they united the colonies in their fight against the british.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.