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Two main factors affect the speed of sound: the material that makes up the medium—such as air or water—and the temperature. If we know the medium and the temperature, however, we can predict the speed of sound.
The answer is: [C]:
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"keep the wealthy from taking advantage of small business owners."
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I would go with answer choice c earthquakes since el nino was a water based event and no earthquakes occurred because of it<span />