The Kansas-Nebraska Act allowed each territory to decide the issue of slavery on the basis of popular sovereignty. Kansas with slavery would violate the Missouri Compromise<span>, which had kept the Union from falling apart for the last thirty-four years.</span>
Answer:
The answer is A
Explanation:
The first Document was Articles of Confederation.
The Mexican Cession happened in 1848. In this treaty, Mexico handed over Texas to the US. Hope this helps.
Answer: B
Explanation: the point of checks and balances is so they can check if something is unconstitutional.
