Geologists can use waves to learn about Earth’s interior. P waves travel faster than S waves. S waves travel through solids only, which tells geologists that the
core is liquid.

Geologists call the outer, solid area of Earth the crust; the next layer is the
. Finally, at the very center, is the core.

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

first one is the correct answer

cock topography

the study of the surface of a large voluptuous cock.

look at that sorostitute right she's a cock topographer!

what classes are you taking this

cock topography!