3 parts is geography, civilization., and culture
C. The prime minister is appointed by the president
Demand was high and slaves (especially african slave trade) were easy and cheap to get since tribes would kidnapp other africans in exchange for guns and 'modern' (for their time) items they wanted. In new lands people needed slaves to do a lot of the work they were unable to do.
Because they need food and water to survive on their journey in North America
