GEOLOGY

Detailed explanation-1: -Because S waves only move through solids, seismologists were led to conclude that the Earth’s outer core is a liquid. S waves move rock particles up and down, or side-to-side, and are always perpendicular to the direction that the wave is traveling in (the direction of wave propagation).

Detailed explanation-2: -S waves shake the ground in a shearing, or crosswise, motion that is perpendicular to the direction of travel. These are the shake waves that move the ground up and down or from side to side.

Detailed explanation-3: -Both P and S waves travel outward from an earthquake focus inside the earth. The waves are often seen as separate arrivals recorded on seismographs at large distances from the earthquake.

Detailed explanation-4: -transverse waves A type of waves in which material is shaken side-to-side or up-and-down, compared to the direction in which the wave is traveling.