How many tons of soil is eroded each year in the united states A. 20.5 Billion
B. 95.6 Million
C. 1.6 Billion
D. 22 Billion

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.