What information might the geographer be able to convey more clearly than the economic historian?

Some information that a geographer might be able to convey more clearly than the economic historian would be the migration patterns of humans over time, based on the changing climate and environment that forced them to move. 

10, that's when i feel like parent's start giving there kids tasks. possibly younger sorry if this wasn't at most

One of the things that allowed native americans in mexico to settle cities larger than those in areas to the north was "b. the development of cities that were built by an earlier civilizations," since mexico had been the home of some of the world's most advanced civilizations before the columbian invasion