How long did WWII last when did it start and when did it end how many deaths and how many years if it lasted that long? Marking brainliest Answer plz

Officially, the exact dates are September 1, 1939 – September 2, 1945. An estimated total of 70–85 million people perished, or about 3% of the 1940 world population. It lasted 6 years.

tbh idk same thing here

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.