Which best describes what geographers study? a)how governments affect the environment
b)how the economy develops in different places
c)how history affects development
d)how things change from place to place

Which options most accurately assess the impact of transportation improvements (e.g., railroads, canals, steamboats, transcontinental railroad) on the settlement of the west? ***(select all that apply.)*** a. they led to an increase in population density. b. they made it easier to travel long distances. c. they in establishing towns. d. they led to the development of the fur trade. e. they allowed for international travel.