Because of all of the new settlement and diseases which they were not imune to.
The answer is "jumping to conclusions".
Jumping to conclusions is a mental term alluding to a correspondence snag where one "judge[s] or decide[s] something without having every one of the actualities; to achieve unjustifiable conclusions". As it were, "the point at which I neglect to recognize what I watched direct from what I have just gathered or assumed". Because it includes settling on choices without having enough data to make sure they are correct, this can offer ascent to terrible or impulsive choices.
Answer:
The Wilmot Proviso was a piece of legislation proposed by David Wilmot (D-FS-R PA) at the close of the Mexican-American War. If passed, the Proviso would have outlawed slavery in territory acquired by the United States as a result of the war, which included most of the Southwest and extended all the way to California.
Explanation:
A cat has its claws at the end of its paws and coma is a pause in the end of a clause
