Multiple choice general knowledge science & technology

Earth' core is mainly made up of which element?

  1. Silica

  2. Carbon

  3. Tungeston

  4. Iron

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

Earth's core is primarily composed of iron (Fe), which makes up about 85% of its mass, along with nickel and lighter elements. The inner core is solid iron-nickel alloy, while the outer core is liquid iron. This iron core generates Earth's magnetic field through convection currents.