The two causes of World War 2 were:
(i) Conflict of ideology between Dictatorship and Democracy
(ii) Inefficiency of league of Nations.
The main job is to help the president. Each of them know something different so that means that they help and give the president advice and information.
The most correct answer here would be the growing of crops nad the taming of animals by early hmans. The Neolithic revolution is often seen as the transition from hunter-gatherer societies to societies of agricultural production and husbandry.
<span>In all the research I was able to cover on this topic the only answer to emerge was Oracle bones. These were normally bones taken from oxen or turtles, and were used for a particular type of divination. Namely, the prediction of future events based upon the answers they could divine from the Gods based upon the actions of the bones.</span>