What factors shaped immigration policy in the late 19th/early 20th century, and what were the criticisms of U. S. immigration policy at the time?"

Why do countries create guidelines and laws on how a country is going to be run?

Ineed answers 5 and 6 on my social studies homework reply to this question i posted

The 1884 amendment added onto the chinese exclusion act included what additional stipulation? the law would apply to ethnic chinese regardless of which asian country they originated from. the law would provide newly arrived chinese immigrants with land in the oklahoma territory. the law would establish all chinese americans as permanent aliens and deny them citizenship. the law would prohibit chinese immigrants from reentering the united states once they exited.