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.
Cabinet members report to the President
It was composed of escaped African slaves located in Brazil, which saw internal conflict leading to its demise at the hands of the Portuguese
It prevented the federal government's choice to stop making treaties and allowed it to continue passing the laws to carry out its Native American policies