Earth's interior is
A) evenly mixed throughout.
B) not subject to internal differentiation.
C) heated unevenly by the heat of radioactive decay.
D) arranged with lighter elements toward the center and heavier elements toward the crust.

Question

Quizplus · Accepted Answer

The heat of radioactive decay is not evenly distributed throughout Earth's interior, leading to uneven heating. This contributes to processes such as mantle convection, which cause internal differentiation and the separation of different types of materials. There is also evidence that heavier elements are more concentrated towards the center of the planet, with lighter elements being more abundant in the crust.

Earth's Interior Is