Which of these statements is correct about P and S seismic waves?
Both P and S waves travel along Earth's surface and their amplitude decreases with depth into Earth.
Both P and S waves travel with the same speed through Earth and their amplitude increases with time.
P waves are radiated along a single direction but S waves are radiated along all directions.
P waves change the volume of the medium through which they travel but S waves do not change the volume of the medium.

Question

Which of these statements is correct about P and S seismic waves?
Both P and S waves travel along Earth's surface and their amplitude decreases with depth into Earth. 
Both P and S waves travel with the same speed through Earth and their amplitude increases with time.
P waves are radiated along a single direction but S waves are radiated along all directions. 
P waves change the volume of the medium through which they travel but S waves do not change the volume of the medium.

angel010 · Answer

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