The emergence of rock-and-roll in the united states demonstrates <span>that cultural patterns are subject to change.
When rock-and-roll music first appeared in America, it was considered rude and obscene, and ungodly. Prior to that period, very different types of music were listened to. However, as times changed, new musical genres were introduced, and rock-and-roll was one of them, with Elvis Presley and the others. </span><span /><span>
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Jacob Riis, Ida Tarbell, and Margaret Sanger are<span>best known for their efforts to
(1) create awareness about social problems.</span>
Answer:
NATO stands for North Atlantic Treaty Organization.
Explanation:
It was formed in 1949 to provide collective security against the threat posed by the Soviet Union.
Answer:
It would require the United States to join the League of Nations
