Multiple choice general knowledge science & technology

The core of earth is primarily made of ___

  1. Iron

  2. Rocks

  3. Silica

  4. Magnesium

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Earth's core is primarily composed of iron and nickel, with iron being the dominant element. The inner core is solid, while the outer core is liquid. Rocks, silica, and magnesium are more abundant in the mantle and crust.