Question

Earth's core is made mostly of

A. silicon and oxygen.
B. iron and nickel.
C. silicon and magnesium.
D. iron and magnesium.

Answer 1

Answer:

iron and nickel

Explanation:

Deep inside the Earth's core, near the center is iron and nickel.

Answer 2

Answer:

B. iron and nickel

Explanation:

The Earth's innermost compositional layer is the core. The core is made mostly of iron and nickel.