Why was the idea of democracy succesful?

In critical thinking, what is the one resource that the human desire never surpasses the available amount? a)drinkable water b) air c) money d) oil

Each of the following countries was part of the big four at the paris peace conference except a. russia b. italy c. germany d. britain

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.