In the context of fluid dynamics, interference refers to
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a. the results of two waves meeting
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b. anything that changes the course of a wave
c. the consequences of waves hitting the shore
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d. the effect of different mediums of waves interacting

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.