GEOLOGY

Detailed explanation-1: -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-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.

Detailed explanation-3: -S-waves cannot travel through liquids. When they reach the surface they cause horizontal shaking. Liquids don’t have any shear strength and so a shear wave cannot propagate through a liquid. Think of a solid material, like a rock.

Detailed explanation-4: -Detailed Description. P-wave and S-wave paths through the earth. Scientists discovered that Earth’s outer core is liquid by observing seismic waves. P waves travel through solid and liquid, but S waves do not travel through liquid.

Detailed explanation-5: -Shear waves cannot travel in liquids or gases–so, for example, S waves don’t travel through the ocean or through the outer core.