I'm doing these now if you need tou can look at some answers on my questions
Alfred Wegener hypothesis of continental drift was replaced in 1967 by plate tectonics. Today, the theory of plate tectonics is widely, this theory explains the structure of the earth's crust and many associated phenomena as resulting from interaction of rigid lithospheric plates that move slowly over the underlying mantle.
Albeit this is a basic answer, World War Two was a major catalyst to an increased focus on internationalism. In addition, financial and political interests (most notably for political interests is the Cold War) are both legitimate reasons to why the United States of America has remained as a major part of international affairs.
It is B because The fascist leaders in Germany and Italy want a war to test their new strength, appeasement by the British and France gave Hitler time to prepare his wartime strategy, and Invasion of China lead to the Japan joining the war. Actually, for B it is that Germany invaded Poland which technically started WW2
