Question

At which depth below Earth's surface is the density most likely 4.2 g/cm^3?

a) 0 km
b) 1 km
c) 2 km
d) 3 km

Answer 1

The density of the Earth increases with depth, but none of the given depths match a density of 4.2 g/cm³.

Step-by-step explanation:

The density of the Earth increases with depth. The largest part of the Earth, called the mantle, has a density that increases from about 3.5 g/cm³ near the surface to more than 5 g/cm³ at depths below 2900 kilometers. Therefore, the density of 4.2 g/cm³ would most likely be found at a depth greater than 2900 kilometers. None of the given options is deep enough to match this density, so the answer would be none of the above.