Holes drilled several kilometers into Earth’s crust provide direct evidence about Earth’s interior in the form of a. seismic waves. b. rock samples. c. liquid iron. d. volcanic eruption.

Respuesta :

Either B. rock samples or C. liquid iron

Answer:

b. rock samples

Explanation:

It's rock samples because when you drill deep into the Earth you'll find different types of rocks that make up the mantel.