Final answer:
The rising tensions among European powers were indeed one of the causes of World War 1.
Step-by-step explanation:
The statement 'Rising tensions among European powers was one cause of World War 1' is True.
Before World War 1, there were growing tensions among European powers due to various factors such as imperialism, nationalism, and militarism.
For example, the competition for colonies and resources led to conflicts between countries like Britain, France, and Germany. Additionally, the formation of rival alliances like the Triple Entente and the Triple Alliance further escalated tensions, eventually leading to the outbreak of World War 1.
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