Slavery obviously. The North had more factories and they farmed food products. A large Southern export was cotton. The North also had a higher population, more cities. The South had more military bases. How many do you need?
I'm not sure what you mean by this
<span>poverty leads to lack of purchasing
power, leading to poor nutrition, affecting the potential to work and
generate income, leading to further poverty.
malnutrition makes children
susceptible to infections, which further decreases their nutritional
intake, leading to further malnutrition</span>
