Approximately what is the pressure on a rock at 15 km depth in Earth's crust? (Note: 1 bar is approximately 1 atmosphere and 1000 bars equals 1 kbar.)
A)4 bars
B)40 bars
C)400 bars
D)4 kbars

Question

Quizplus · Accepted Answer

The pressure in the Earth's crust increases by about 1 kbar (or approximately 1000 bars) for every 3-4 km of depth. Therefore, at 15 km depth, the pressure would be roughly 4-5 kbars, making 4 kbars (D) the closest approximation.

Approximately What Is the Pressure on a Rock at 15