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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.

What's the waste product of electrons and pyruvate combining in fermentation?  

Explain why biological control methods are generally environmentally superior to chemical pest control methods.