Question

7 which of the following statements about the earths inner core is true? a its mostly made of iron b its mostly made of nickel c its mostly made of cadmium d its mostly made of magnesium

Explanation:

The Earth's inner core is a solid sphere composed mainly of iron. Nickel is also present but in smaller amounts compared to iron. Cadmium and magnesium are not the primary components of the inner core.

Answer:

A. It's mostly made of iron