GEOLOGY

Detailed explanation-1: -S waves can only travel through solids, and scientists have successfully mapped the earth’s interior by studying the routes of these waves. P waves or Primary waves are the first waves to hit the seismographs when an earthquake strikes.

Detailed explanation-2: -P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves.

Detailed explanation-3: -S-waves are shear waves, which move particles perpendicular to their direction of propagation. They can propagate through solid rocks because these rocks have enough shear strength.

Detailed explanation-4: -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-5: -S-waves, also known as secondary waves, shear waves or shaking waves, are transverse waves that travel slower than P-waves. In this case, particle motion is perpendicular to the direction of wave propagation.