Answer:
Many immigrants experienced discrimination from Americans who questioned their loyalty to the U.S.
Step-by-step explanation:
The impact world war 1 had on immigrants who had arrived in the united states during the previous decade was "Many immigrants experienced discrimination from Americans who questioned their loyalty to the United States"
This form of discrimination was more popular among the people of Germany, Austria-Hungary, and Turkey descents. This is because world war 1 was majorly between the Germany, Austria-Hungary, and Turkey forming Central Powers against the Allies that include United States, Great Britain, France, etc.