Because the people of Kansas were allowed to vote whether the new state should be slave or free.This focused a lot of attention on Kansas, and terrorists from <span>both sides crossed into the state to interfere with the voting.</span>
The answer would be D: Russia signs a treaty with the Central Powers ending its participation in World War I.
The best option in terms of El Nino would be "<span>the cyclical warming of the Pacific Ocean near the equator," since this weather event is "expected" practically at the same time every year. </span>
