Nobles had overthrown most of the monarchs by 750 B.C.
It was important that civil service positions were not hereditary so that officials would be well-qualified. The fear was that if these positions were hereditary or inherited by a parent then officials would not really qualify for the position they inherited. There would be no requirements to serve except that their parent was previously an official. By not allowing this officials would be required to qualify on their merits and not based on who they were related too. Thus better and more qualified officials would exist. The answer is A) so officials would be well-qualified.
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"Who was the main writer of the Declaration of Independence?"
The main writer of the Declaration of Independence was:

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I think internal conflicts are situations or events that occur from within there may be internal
Answer:
The Korean war and Vietnam war increased international tension between the US and the USSR because they represented the war power of these two nations.
Explanation:
As you may already know, the cold war was a "confrontation" between the USSR and the USA. The two nations did not come to establish a war conflict between the two, but disputed their power to influence other nations in an ideological and scientific way. Although they did not face each other directly, it was important that both the US and the USSR affirmed their war power and their ability to be a power, for this reason, they were involved in wars in peripheral countries, such as the Vietnam War and the Korean War. Where each of the two powers, supported their interests indirectly, each arming a different group in these wars and increasing the tension between the two for the demonstration of military power.