Answer:
A! (this question was already on brainly so when i looked it up to get you the answer i found it and it said A and they they got the question right)
Explanation:
In the 1950's, Communism was a big no-no, so when Communist North Korea invade South Korea the United Nations responded by sending financial aid to South Korean defenders and it began to think about sending troops to fight off the Commies.
The Dust Bowl, also known as the Dirty Thirties, was a period of severe dust storms that greatly damaged the ecology and agriculture of the US and Canadian prairies during the 1930s; severe drought and a failure to apply dryland farming methods to prevent wind erosion (the Aeolian processes) caused the phenomenon.