What was the effect of the Mexican-American War? Choose all that apply. (1 point) Responses It ended the conflict over the Oregon territory. It ended the conflict over the Oregon territory. It increased tensions between the North and the South. It increased tensions between the North and the South. It resolved the argument over whether there should be slavery in the territories. It resolved the argument over whether there should be slavery in the territories. It proved a training ground for many generals later involved in the Civil War.
- It increased tensions between the North and the South.
- It proved a training ground for many generals later involved in the Civil War.