What factors helped the North to produce more arms and supplies than the South?
heavy taxes on the mining industry in the West
experienced government and military leadership
strong support and financial aid from foreign governments
mechanized factories and a steady supply of immigrants seeking work

mechanized factories and a steady supply of immigrants seeking work

Explanation:

The population count was more in the North (22 million vs 9 million in the South). It was also more industrialized: it produced 97% of the firearms and 96% of the railroad equipment.

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the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.

the correct answer is:

true

i am an online student and after i submit my quizzes, it gives me the correct answers to any that i may have missed. the answer to this question is true