How do seismic waves tell us about the internal structure of the Earth? A. P and S waves tell us that waves travel at different speeds in different materials. P-waves travel faster through liquid and S-waves cannot travel through solid.
B. P and S waves tell us that waves travel at different speeds in different materials. P-waves travel faster through solid and S-waves cannot travel through liquid.
C. P and S waves tell us that waves travel at the same speeds in different materials. P-waves travel faster through liquid and S-waves cannot travel through solid.
D. P and S waves tell us that waves travel at the same speeds in different materials. P-waves travel faster through solid and S-waves cannot travel through liquid.