Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


The idea that surface waves cannot travel through any liquid medium led seismologists to conclude that the outer core is liquid.
6 4 6
Scientists know that the outer core of the earth is liquid by studying the seismic waves produced from earthquakes. There are two different types of seismic waves produced in earthquakes: the primary waves or P waves and secondary waves or S waves.Seismic monitoring stations all over the world are capable of picking up both P- and S-waves, but S-waves do not travel through liquid (they are attenuated though), while P-waves not only do travel through liquid, they are refracted!
3 4 3
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts