Which are reasons why slavery was not as important in the north as in the south?

the availability of immigrant labor
lower profits
less interest in money
less interest in chivalry

23. how does specialization among nations encourage interdependence? nations work together to share labor and resources to produce vital goods. nations sign treaties prohibiting taxes on imports. nations produce specific goods and then trade to obtain things they need. nations that are more developed agree to fund development in nations with limited industry.