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.
Geography: Z<span>ero degrees longitude is known as the Prime Meridian. Hope that helped. :)</span>
The Berlin Airlift caused tensions to increase due to American airplanes transporting goods to democratic and West Berlin while East Berlin was owned by communist USSR.
Compromise of 1877 and home rule is the two ways the 1876 elections signal the end of reconstruction. Compromise of 1877 is one of the two ways they did to signal the end of reconstruction in 1876 the other one was Home rule. The answer in this question is Compromise of 1877 and home rule.
