Answer:
I believe it is 12, but it is undefined. Some states it may be 7-8 as the least depending on the size or the need, but from my knowledge I think I am close to correct or spot on.
I hope this helped you !
A volcanic eruption or extreme flooding.
Women's work in WW1. During WWI (1914-1918), large numbers of women were recruited into jobs vacated by men who had gone to fight in the war. New jobs were also created as part of the war effort, for example in munitions factories.
