Question

Define primary waves...​

Answer 1

primary wave. ... Primary waves are alternatingly compressional and extensional, and cause the rocks they pass through to change in volume. These waves are the fastest traveling seismic waves and can travel through solids, liquids, and gases. Also called Pwave See Note at earthquake .

Answer 2

$\huge\blue{Answer\:Is}$

Primary waves are alternatingly compressional and extensional, and cause the rocks they pass through to change in volume. These waves are the fastest traveling seismic waves and can travel through solids, liquids, and gases. Also called P wave See Note at earthquake .

$\huge\green{thanks}$