It is the outermost layer of Earth.

It is the innermost region on Earth.

It is the denser layer beneath the lithospheric mantle.

He interpreted that within Earth's outer shell, the velocity of seismic waves changes as the composition of the earth within changes.

He suggest the theory of seafloor spreading,

PHIVOLCS

PAGASA

It is a breakage on Earth's Crust.

It is a series of large waves with extremely long wavelength produced by a disruption of the ocean floor. 

which type of seismic wave is also known as compression wave?

This is a type of fault in which a block of fractured land slips downward from the fault plane.

This is a type of fault in which a broken block of land slides horizontally with respect to the other block.

its move horizontally along the surface, causing a side-by-side movement.

It is an natural fast shaking of the lithosphere caused by the releases of energy stored in rocks.