How was the North affected by slavery in the decades before the Civil War? Answer-

A) Northern railroad owners used slave labor to lay railroad tracks in the North.

B) Northern workers faced competition from large numbers of fugitive slaves.

C) Northern factory owners bought Southern cotton for their textile mills.

D) Northern city dwellers bought Southern manufactured goods.

c or d both can be the answer

it proved indian land claims were unjustified.

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done.