Question

What are seismic waves? How are these waves recorded?

Answer 1

Answer:

hope this will help

Explanation:

Scientists use an instrument called a seismograph to record data about seismic waves. This information yields information that can help scientists learn not only about earthquake behavior but also about the structure of Earth itself. There are two broad classes of seismic waves: body waves and surface waves.

Answer 2

Answer:

When they travel through air, they take the form of sound waves – they travel at the speed of sound (330 ms-1) through air but may travel at 5000 ms-1 in granite. Because of their speed, they are the first waves to be recorded by a seismograph during an earthquake.