Its the periodic movement if that what your asking for
Answer:
sorry bout this
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░░░▌░▄▄▄▐▌▀▀▀░░ This is Bob
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▀█▌░░░▄░▀█▀░▀ ░░ Copy And Paste Him onto all of ur brainly answers
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░░░░░░░▀███▀█░▄░░ Over brainly
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Explanation:
It gave them more power because before they didn't have much power.
In 1917, Germany attacked some passengers in submarines from the US that led the US to assist in WW1. Hope this helps!
