At the constitutional convention delegates from northern and southern states disagreed about whether

Slave Trade Compromise

Those who opposed slavery in the Northern states wanted to bring an end to the importation and sale of slaves. This was in direct opposition to the Southern states, which felt that slavery was vital to their economy and did not want the government interfering in the slave trade.

Explanation:

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a change of venue is the legal term for moving a trial to a new location. a change of venue request because venue is improper means that the removing defendant believes that the case may not be in that venue because it is improper under procedural rules.