Which statement about the behavior of
living things is true?

what's the rest of the question

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave