Sound waves have two parts. the part of the wave where the particles of the medium are spread apart is called the
rarefaction
compression
pitch
amplitude

Earthquakes and volcanic eruptions are examples of rapid events that are caused by the movement of earth's mountain building is a much more slow process, which is caused by the movement of earth's a. ocean tides; crustal plates b. ocean tides; winds c. crustal plates; crustal plates d. crustal plates; ocean tides