Iwill make you the brainliest scientists are able to learn about earth's interior by studying s and p waves. describe how these waves offer insights into the earth's layers.

It's called refractive/reflective seismology. S waves will not travel through liquid though P waves will. So if we look at a seismograph that shows at a point S waves stop but P waves continue on we know that there is a liquid there. Further, we can use Snell's law to define geologic interfaces beneath the surface by looking to see how and where these seismic waves refract or reflect.

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