In which areas of continental north America were indigenous societies hunter-gatherers? What geographic/environmental factors contribute to this? what cultural element developed in these areas?

Which allows college students to work part time jobs to pay for educational expenses ?

This is an ap world history question. i am working on a worksheet which has a vent diagram with each circle labeled either us or byzantine economy. the middle is the similarities. can someone explain to me the similarities and especially the differences between the two?

Which soil horizon, also known as the zone of accumulation, is enriched in clay, iron oxides, silica, carbonate, and other materials?