Answers

2016-07-13T16:06:38+08:00
A body wave a seismic wave that moves through the interior of the earth, as opposed to surface waves that travel near the earth's surface. P and S waves are body waves. A surface waves is a seismic or an elastic wave. It's  a mechanical wave too that propagates along the interface between differing media, usually as a gravity wave between two fluids with different densities.
3 2 3