Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers. Which statement about the layers would they identify as correct? The outer core is less than 70 km in thickness. The crust assists in forming Earth's magnetic field. The mantle is denser than the crust. Pressure increases when moving from the core to the crust.

The mantle is indeed denser than the crust. As you go deeper into the Earth, the materials become progressively denser due to increasing pressure from the layers above. This increase in density is a crucial factor in understanding Earth's geology. On the flip side, as Maalik and Sophia continue their studies, it's interesting to note that the outer core is actually over 2,000 kilometers thick! It’s composed mainly of molten iron and nickel, which play a vital role in generating Earth’s magnetic field, rather than being thin like the incorrect statement suggests.