Scientists know that the mantle is made of the rock peridotite because

Question

Question 2 options:

of evidence from seismic waves, heat flow, and meteorites.

it is commonly seen at Earth's surface.

it is ultrafelsic, which fits the density of the mantle.

All of the above

Answer 1

The correct answer is:

of evidence from seismic waves, heat flow, and meteorites.