A joint resolution to amend the United States constitution.
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be that the North had better industrial capabilities, which allowed them to produce more war materials. </span></span>
Invention of new weapons/gases was HUGE, but Disease and famine was also a large factor
It might lower the population drastically.
Hope this helps!
