How did early labor organizations help workers improve their conditions?

Read each statement and decide whether it applies to ellis island, angel island, or both: 1. most immigrants were from china or another asian nation. 2. immigrants had to pass health inspections before being admitted to the united states. 3. immigrants could be denied entry or sent back to their home countries.

4. any area in which one nation has power over another; i.e. - this happened to china when it was defeated by japan

Which piece of information would most a historian create an interpretation of this photograph of works in a factory?