Answer:
General Dwight D. Eisenhower
Explanation:
He became General in the European theater (area) and by 1943 was Supreme Allied commander of all of Europe.
Hope this helps :)
The answer is B. Without the United States, the League lacked the firepower to actually make a huge difference without the individual nations suffering huge consequences. In turn, the League didn't do anything, thus they were ineffective and nothing but a figurehead for democracy and international peace.
The answer is C.
As a science website says, "Scientists think they know why the Ancestral Puebloans disappeared. The primary culprit, studies suggest, was a megadrought that would have made it impossible to grow enough food to feed the tens of thousands of people living in the region."
If you didn't know, drought represents the lack of rain.