Which of these was not a key difference between northern and southern states at the constitutional convention? wanting to protect states' interests vs. a government with strict rules having more, larger cities vs. having fewer, smaller cities wanting to protect agriculture vs. protect industries having many enslaved people vs, using less enslaved labor

Out of the given statements, the point that was not a key difference between Northern and Southern states at the Constitutional Convention was having many enslaved people vs. using less enslaved labour  

Option 4

Explanation:

When the first Constitutional Convention took place, slavery was not a hot topic to be discussed on. The convention was to discuss the failure of the Articles of Confederation and to take steps towards its improvisation by making solid amendments to it.

Representatives of the Northern state, in which the economy was not heavily dependent on slavery, believed that slaves should not be considered agents. Because they would give more representatives to the South.

The southern states fought for their representatives include a slave. The compromise between them became known as the three-fifth compromise. So, slavery was not a main difference between states of north and south.

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a reason that was key to coolidge's victory in the 1924 presidental election was that; democratic party supporters were split in the north and south.