verb (used with object) 1. to draw or haul toward oneself or itself, in a particular direction, or into a particular position: to pull a sled up a hill. 2. to draw or tug at with force. 3. to rend or tear: to pull a cloth to pieces.
The Love and Rayleigh waves (collectively known as surface waves) are the slowest moving but most damaging of the seismic waves.
B) perpendicular. P waves are the fastest kind of seismic wave. A longitudinal P wave has the ability to move through solid rock and fluid rock, like water or the semi-liquid layers of the earth. It pushes and pulls the rock it moves through in the same way sound waves push and pull the air.