Answer:
"prior to fighting, relations between the North and South had been poisoned by disputes over taxes. The North financed its industrial development through crippling taxes imposed by Congress on imported goods. The South, which had an agricultural economy and had to buy machinery from abroad, ended up footing the bill. When recession hit in the 1850s Congress hiked the import tax from 15 to 37 per cent. The South threatened secession and the North was outraged. An editorial in the Chicago Daily Times warned that if the South left the Union ‘in one single blow, our foreign commerce must be reduced to less than one half of what it is now. Our coastwise trade would pass into other hands. One half of our shipping would lie idle at our wharves. We should lose our trade with the South, with all of its immense profits’. War was the only alternative to financial ruin."
i really hope this helps, friend! stay happy and healthy! :))