A - Because they are a direct link to the events in history
Primary sources are sources that came from that time of history from the same location, time period, and era. For instance, journals from World War II from a French Military leader. These are direct links to that time in history and are the most accurate sources that are presented.
B is incorrect as even without these sources there are other methods to know about history such as secondary sources.
C is incorrect as primary sources are not the only way - again, secondary sources are a thing.
D is incorrect as secondary sources are reliable and can be trusted, but they just aren't as important and well, direct as primary sources.
Hope this helps!
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Explanation:
A senator's term of office is six years and approximately one-third of the total membership of the Senate is elected every two years. Look up brief biographies of Senators from 1774 to the present in the Biographical Directory of the United States Congress.
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a) A U.S. spy plane photographed Soviet missiles in Cuba.
e) After 13 tense days, Khrushchev agreed to remove Soviet missiles from Cuba.
<em><u>Explanation:</u></em>
The Cuban Missile Crisis of October 1962 was an immediate and perilous encounter between the United States and the Soviet Union amid the Cold War and was the minute when the two superpowers came nearest to atomic clash.
The emergency was novel in various ways, including calculations and miscounts just as immediate and mystery interchanges and miscommunications between the opposite sides. The sensational emergency was likewise portrayed by the way that it was fundamentally happened at the White House and the Kremlin level with moderately little contribution from the individual organizations ordinarily associated with the outside arrangement process.
Answer: Economic imbalance among European countries.
Explanation:
The beginning of the war in Europe was greeted with different economic opportunities in the countries. Direct participants in the war and the largest European powers of the time, such as Russia, Germany, and Great Britain, had different economic capacities. Germany and Great Britain were financially stable. Waging war in economic terms was not a problem for them. On the other hand, Russia did not have a developed industry. The imperial government in that country was late in engaging in industrial flows that had been current in Western Europe for decades. This was not a problem only in Russia but in most of Eastern Europe. Such circumstances came to the fore at the front as well. The army of Tsarist Russia had many problems, the lack of quality weapons, footwear, and clothing were everyday problems.
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What question is the answer for?
Explanation: