Describe the movement and mechanical motion of seismic S waves.

Seismic S waves also known as Seismic shear waves are found on the earth. These waves exists in Earthquakes.

The waves usually move up and down or in a perpendicular motion according to the direction of the wave propagation. These waves are found mainly in solids and can’t occur in liquids. It causes decimation of rocks and explosions.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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