To what extent was Mussolini responsible for the failure of the league?

Explanation:

Mussolini had a plan to recreate and establish another Roman empire.  Through this plan he attempted to invade other countries. The countries he invaded such as but not all! Greece, Albania, Ethiopia and modern day Libya (Libya was  not a recognized country back then but had their own resistance movement).  In this League Ethiopia was also a member of the LON  Haile Selassie pleaded with the LON to make Italy stop this aggression yet the LON did nothing. They did place petty sanctions  but they were not effective enough to force Italy to stop the invasion.  

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

oil! is what i am assuming