Why did popular sovereignty make the question of who would settle in Kansas and Nebraska a key concern? Check all of the boxes that apply. 1) The settlers would decide whether or not to allow slavery in the territory. 2) The question of slavery in the territories might eventually affect the balance of free states and slave states. 3) All people in the North opposed slavery on moral grounds. 4) New settlers would be in competition over control of the territories and their future.

The answers are 1,2 and 4

Explanation:

just passed the question

1. The settlers would decide whether or not to allow slavery in the territory. 2. The question of slavery in the territories might eventually affect the balance of free states and slave states. And 4. New settlers would be in competition over control of the territories and their future.

Explanation:

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.