It was very, very important for women to start working during the war because so many people were deployed that the demand for jobs in factories and other places was far higher than there were people available. Also, there were not enough women in the workforce at that time to fill those open positions. They filled many jobs in making supplies for war (that would normally be filled by men). Initially it was difficult to recruit the women (who were originally fitting the bill of "housewives"), and this is where those "We Can Do It" signs with "Rosie the Riveter" came about.
European powers provided support both military and technological wise to countries that are fighting the Islamic expansion
hope this helps
I believe the answer is 3. <span>it spelled the end of many economic opportunities for both groups
During the world war I, many people were obligated into millitary draft and went to the war. When this happen, factories and other busineses in home soil experienced a lack of workers, so many women and african americans had the opportunity to try and operate factories and busineses in the home soils.
When the world war I ended, the men took back the control of the factories and busineses</span>
