You will use the chart below to compare and contrast the North and the South in the years leading up to the Civil War. First, in this section, complete the "North" column of the chart, based on the information you have read. Enter Important economic, political, and social developments
in the North. Include inventions and new forms of transportation and communication.

How did european exploration and expansion cause the african slave trade to expand? a. european explorers discovered the slave trade and expanded it across the indian ocean into south asia. b. arab armies captured european explorers and forced them into slavery. c. european traders shipped enslaved africans to work on plantations in european colonies in the americas. d. european explorers captured african people and forced them to work on their ships.