Final answer:
The prevalent belief about progress in Europe before World War I was that it was fueled by scientific and technological advancements.
Step-by-step explanation:
The prevalent belief about progress in Europe before World War I was that it was fueled by scientific and technological advancements. Europeans believed in the idea of progress, which was associated with the benefits of industrialization, advancements in science, and new inventions. This belief created optimism for a better future and led to the development of new technologies, such as railroads, automobiles, and telephones.
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