What is one advantage that often draws migrants from rural areas to cities?

Why have the aztec ruins in mexico city not been dug up?

The symbols found on the map below indicate where fossils have been found in the same layer of sediment. each unique symbol represents fossil locations of a particular species.

The term "jim crow" is used to describe which of these? a) bans on hunting b) segregation of the races c) preventing women from voting d) creating more public schools