Which of the following statements about Earth's core is correct?
A)It is composed primarily of magnesium.
B)The inner core is believed to be liquid and the outer core solid.
C)Scientists think the inner core formed after the outer core.
D)A third of Earth's entire mass,but only 1/6 of its volume lies in its core.

Question

Quizplus · Accepted Answer

The statement that a third of Earth's entire mass but only 1/6 of its volume lies in its core is correct. The other statements are incorrect. The core is primarily composed of iron and nickel, not magnesium. The inner core is believed to be solid, while the outer core is liquid. The inner core actually formed before the outer core.

Which of the Following Statements About Earth's Core Is Correct