In what way does the United Nations differ from the League of Nations?

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.

How did the environments in north america affect the development of america indian cultures in the period just before europeans arrived

Debris tossed into the atmosphere by a meteorite impact can cause greenhouse warming true false