Leader of the union army

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

6. how did trade with the venetians contribute to the fall of the byzantine empire?

15 points to the "charlemagne" section, what were the two policies that charlemagne implemented when he took the throne? what was the result of the policies and how did it impact his warriors?