Which statement correctly describes the behavior of P and Swaves and the concept of the seismic "shadow zone"? A global array of seismographs detects direct P and S waves up to 140 from the focus of an earthquake. The "shadow zone" from 105 to 140 is where no direct P waves arrive due to refraction at the mantle core boundary. S waves do not travel through the outer core, indicating that it is solid. Using a global array of seismographs, seismologists detect direct P and S waves up to 105 from the focus of an earthquake. Between 105 and 140, no direct P waves arrive due to refraction at the mantle core boundary, creating a "shadow zone". The absence of S waves beyond 105 indicates that the outer core is liquid, as S waves are not transmitted through liquids. Direct P and S waves are detected up to 140 from the focus of an earthquake using a global array of seismographs. The "shadow zone" is between 105 and 140 where no direct S waves arrive due to refraction at the mantle core boundary.