What two (2) geographer's tools would you say are most useful to the geographer, and why?

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

The creation of the trans-siberian railway allowed people to travel across russia. how could this railway impact russian culture?

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock