Which of the following is a factor that historians believe contributed to the north's victory during the civil war?
a. the greater presence of industry in the northb. the south's use of slaves as a main source of laborc. the large amounts of foreign aid received by the northd. the disruption to agricultural production in the south

Hello.

I would say that the most suitable answers are: A. the greatest presence of industry in the North and C. the large amounts of foreign aid received by the North.

I chose these two options because according to historians the North was more industrialized and produced the 90% of its firearms and even the North had a richer agriculture than the South. Also, historias agree that the North had more foreign support than the South, even slaves form the South fought in the Union armies. These two options are the most suitable causes of the North's victory during the Civil War.

Hope this helps.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).