Pollution is a problem associated with urban sprawl, but not with upward growth.

How is an environment able to support different varieties of organisms?

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.

Construct at least two possible hypotheses for the student’s experiment.