This is just so i can give people points. what started world war2, who was involved, and why were they involved?

Sorry if this is incorrect, but I believe that it was started because of an unprovoked attack from Germany to Poland.

Almost every country was involved in World War ll, except for the few countries who remained neutral.

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

i think the answer is the one about environmental and social health.

hope this