Question

[TG.05]Which of these statements best explains why P waves arrive earlier than S waves at the seismic station?

S waves are generated after P waves arrive at the surface.
S waves make longer lines on the seismogram than P waves.
P waves are created first and S waves originate from P waves when they are reflected by solid rocks.
P waves move straight through all medium and S waves move only through solids in a curvy motion.

Answer 1

the last answer: P waves move straight through all medium and S waves move only through solids in a curvy motion.

Answer 2

P waves move straight through all medium and S waves move only through solids in a curvy motion.

Step-by-step explanation:

P waves are compression waves, this means that they can travel through all mediums, and all cores of earth, including the inner core, while S waves can only travel through solids, this makes them much more slower. P waves for example can be trackable on the other side of the earth from where the earthquake´s epicenter is, because they travel through the core of the earth, while S waves are only detectable near the epicenter of the earthquake.