How was the Pax Romana when it came to Public works?

The newly created nazi ghettos were built where? in traditionally jewish neighborhoods. in rural areas. in poor urban areas. in isolated areas to prevent knowledge of the ghettos. primarily in germany.

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.

Which statement is true of both presidential and parliamentary systems of government?