Ineed with 4, 10,11, 12, 14,and 15

11: because more railroads= more supplies moving quicker 

12: because if you have more money you can buy more guns and ammo plus Pay more troops

14: Disease and lack of food killed the troops

15: They also had many more troops than the south so even though they lost 100,000 more they could bring more troops faster than the south could