Final answer:
During World War I, common war efforts involved rationing, the sale of war bonds, and women working in factories. The use of schools as military facilities and child soldiers were less common and not widespread policies among the major combatants. The war required full societal mobilization, including the use of colonial troops and increased female participation in the workforce. The correct choices are 1, 2 and 5.
Step-by-step explanation:
The common aspects of war efforts during World War I included rationing, the sale of war bonds, and women entering the workforce in greater numbers, often taking over jobs in factories due to the men being drafted into military service.
Schools sometimes were used for military purposes, but this was not as common as other home front activities. While child soldiers were used in certain conflict zones, particularly by some colonial powers, it was not a widespread or officially sanctioned policy among the major combatants.
The war on the home front was characterized by government control of industrial output and civilian engagement in war support. Women, especially, took on new roles in offices and factories as they filled roles left vacant by men. The usage of colonial troops and the participation of women in the labor force were some of the significant societal impacts of the war.
Governments had to implement measures like rationing and selling war bonds to manage supplies and garner additional support for the war effort. These efforts were necessary to sustain the prolonged and industrial nature of World War I, which brought new technologies and required the full mobilization of the nations involved.
Hence, Options 1, 2 and 5 are correct.