Q.Consider the following statements regarding seismic waves generated during an earthquake: (a) Primary (P) waves are longitudinal waves that push and pull the rock, and they can travel through solids, liquids, and gases. (b) Secondary (S) waves are transverse waves that cause rock particles to move at right angles to the direction of wave propagation, and they can travel only through solid mediums. (c) The shadow zone of P-waves on the Earth's surface is significantly larger than the shadow zone of S-waves. Which of the statements given above is/are incorrect?