B! The main goal was to keep slavery out of all western lands
"<span>B. The Germans were refused membership in the newly minted United Nations because of their atrocious crimes during the war" is the best answer from the list. </span>
The Integration of Little Rock Central High School refers to the crisis that had occurred during the year 1957, wherein Orval Faubus used national guards to prevent African Americans from attending school at the said high school, because of the racial desegregation during the past.
"<span>Plants and small animals might suffer, and some might die" would be the best option, since the poor air quality would most likely affect certain plants and not others--some of which would be used for food by small animals. </span>