Why did the early battles of the civil war favor the south?

The segments shown below could form a triangle.

In hand stitched dreams which clue tells you that the historical period of the events will be important in the story

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.