Answer:
Explanation:
P WAVES are also called Primary waves. The properties of a primary wave include:
•	They are longitudinal and compressional waves by nature
•	They travel much faster than other waves
•	They travel through the earth to reach the seismograph stations first
•	They can travel through any kind of material, including fluids
•	They travel at the speed of sound, so they travel at the speed of sound
S WAVES are also called Secondary waves. The properties of a secondary wave include:
•	They are transverse and shear waves in nature
•	They arrive at the seismograph stations after the fast- movign P-waves
•	They can travel onlt through solids
•	They are slower than P-waves,a nd speeds are normally 65% of that of P-waves