URGENT Why did northern workers oppose the abolition of slavery?

They believed slave labor was needed in the South.

They feared the South would develop better industries.

They feared competition from black workers.

They believed slave labor was superior to wage labor.

They feared competition from black workers.

Explanation:

This certainly proves true. there were entire unions made up North to raise the minimum wage so black workers would be less likely to get hired because they worked for such low wages.

They feared competition from black workers.

I think

Explanation:

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow