Final answer:
During World War I, war-focused economies changed the way industry operated by converting factories to produce military supplies and taking control of industrial production.
Step-by-step explanation:
During World War I, war-focused economies had a significant impact on the way industry operated. Governments converted factories to produce military supplies, ensuring that all economic activity was intended to support the war effort. Most industries were nationalized to ensure the production of sufficient supplies, and governments took complete control of all industrial production.
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