Answer:
Quite, they brought unknowingly the diseases that killed most of them.
The correct answer is
While courts have protected undocumented immigrants' civil liberties, some argue that those protections are being ignored.
There has always been a problem of protecting undocumented immigrants a some argues that they are illegal citizens to begin with.
Answer:
Separation of powers
Explanation:
The three branches are executive, legislative, and judicial. No other explanation is really needed, but I'll give an example: the US government, with the president/vice president/cabinet, Congress, and the Supreme Court/other federal courts.
