All of them except the league of nations because it was the united nations that was created after ww2
Mark Jr needs 3 shelves if he wants to fit them all because 2 times 7 is 14 so there is 2 left over so he needs one more which is 4
I think the answer is Texas.
I think the one that Native American Groups most threatened by is :
Diseases introduced by white settlers
Back then, they're forced out of their original place because of this
hope this helps