Question

how did the seismologist learned about the different layer of the earth

Answer 1

Answer:

Explanation:

By studying thousands of earthquakes and by studying different types of seismic waves. Seismic wave is the wave or energy released by an earthquake, it can be body or surface waves, but body wave is more effective in mapping different layers beacuse surface wave is for surface or crust only however body waves can travel inside the earth. They also use instrument called seismometer to detect waves.

Answer 2

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. ... So, scientists study the path and speed of these waves through the earth to decipher boundaries and the materials that make up the layers.