Question 19
Which row describes a seismic S-wave?
- type of wave: longitudinal; direction of vibration: parallel to the direction of travel of the wavefront
- type of wave: longitudinal; direction of vibration: perpendicular to the direction of travel of the wavefront
- type of wave: transverse; direction of vibration: parallel to the direction of travel of the wavefront
- type of wave: transverse; direction of vibration: perpendicular to the direction of travel of the wavefront
