Question

Using data from seismic waves, geologists have learned that Earth’s interior is made up of several


a.
continents.
b.
layers.
c.
ridges.
d.
trenches.

Answer 1

It's:

- B.) Layers

  *crust, mantle, etc.

Answer 2

Answer is......B.....

Several layers....

1.core

2.mental

3.crust.