Answer:
A very important cause of the cause of the American Civil War was the election of Abraham Lincoln. Lincoln wanted to abolish slavery and the Southerners did not want to be ruled by an anti-slavery Northerner. ... The amount of deaths/casualties in the American Civil War is also a very important effect
"Bleeding Kansas", this was a fight between North and South over Kansas and Nebraska to be a free or slave state
(1) data triangulation: the use of multiple data sources in a single study; (2) investigator triangulation: the use of multiple investigators/research- ers to study a particular phenomenon; (3) theory triangulation
D is the answer ( for cutting off our trade with parts of the world )
