<span>The red scare that lay the ground for
</span><span>mccarthyism </span><span> was sparked off by numerous success stories of the communist forces.
The success of communism forces in china, and the increased mentions of soviet nuclear bombs and the discovery of several agents from USSR in the USA territory led to red scare that reached its peak with the sputnik news.
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The US government's decision to develop a hydrogen bomb, first tested in 1952, committed the United States to an ever-escalating arms race with the Soviet Union. The arms race led many Americans to fear that nuclear war could happen at any time, and the US government urged citizens to prepare to survive an atomic bomb.
The correct answer is option A) "Frederick II took Silesia". In the Austro-Prussian War or Seven Weeks' War, the leader of Prussia King Frederick the Great resulted victorious over Austria. This changed the map of Europe because the kingdom of Prussia gained control of extensive new lands in Silesia, including highly industrialized and densely populated areas.
B) Kennewick man
He died in present day Washington State and he should have migrated in what was known as the Beringia land bridge thousands of years ago, making his way from Asia into the Americas.
D. The Japanese attacked pearl harbor.