What does refugee mean

Which area of russia is volcanically active? a. ural mountains b. baltic sea c. kamchatka peninsula d. volga river

How was classical persia's extensive network of roads important to its civilization?

"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.