Earth's mantle, the semimolten layer below the crust, is composed largely of what chemical materials?
A) iron-poor rocks and minerals
B) mostly pure iron
C) solid hydrogen and helium
D) minerals rich in iron and magnesium

Question

Quizplus · Accepted Answer

The Earth's mantle is primarily composed of minerals rich in iron and magnesium, which contribute to its density and properties. This composition is distinct from the crust, which is richer in lighter elements like silicon and aluminum.

Earth's Mantle, the Semimolten Layer Below the Crust, Is Composed