4. what would be considered a pull factor that would encourage a person to consider migrating to a new country?

All of the following were pre-columbian civilizations in latin america, except

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Political boundaries are determined by the political party in control at the time. true or false