How does temperature change with depth in earth's interior

i hope this helps you

from google:

"The Earth gets hotter as one travels towards the core, known as the geothermal gradient. Geothermal gradient is the amount the Earth's temperature increases with depth, indicating heat flowing from the Earth's warm interior to its surface. On average, the temperature increases by about 25°C for every kilometer of depth"

answer; gravity pulls glaciers down hill and as glaciers flow it pick up rocks and soil;

seismic wave -

an elastic wave in the earth produced by an earthquake or other means.

explanation: