What are the causes of world war i and wars affects on social economic and foreign-policy's in the united states

What best explains why the us government placed restrictions on asian immigration through angel island? many americans did not believe in assimilation. many americans did not approve of the gentleman’s agreement. many americans held nativist or racist views. many americans feared a loss of educational opportunities.

Which statement describes the impact of the 21st amendment?

Experimented with communism before taking part in a number of civil rights and antiwar protest