What is believed to be the composition of Earth's core?
A) about 80% iron and 20% lighter elements
B) about $1 / 4$ iron and
$3 / 4$ lighter elements
C) about half iron and half lighter elements
D) essentially pure iron

Question

Quizplus · Accepted Answer

The Earth's core is believed to be composed of about 80% iron and 20% lighter elements, such as oxygen, silicon, and sulfur, which account for its density and magnetic properties.

What Is Believed to Be the Composition of Earth's Core 1/41 / 41/4

What Is Believed to Be the Composition of Earth's Core $1 / 4$