Slavery tolerated because of "necessity" means that you do not really want to do it, but you think you must do it. An example is when you have a farm and you need people to work on it. The trouble behind this scenario is that your farm isn’t making money to pay your farm helpers their proper wages, so you resort to slavery. In this case, you do not need money for salaries because your farm is doing well to keep your slaves clothed and fed.
Slavery affirmed as a "moral right" is when you think it is your right to be the master and the slaves deserves to be slaves.
The united states joined the war and russia dropped out.
Your answer is <span>C. I</span><span>t was the capital of the Sui Dynasty and the largest city in the world at the time.
Hope this helps.
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<span>Korea and its neighbor Manchuria had been of great importance to the USSR, the PRC (People's Republic of China) and Japan since the nineteenth century. Following this tradition, after World War II the USSR made an attempt to occupy Korea. </span>
