In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following?

🎲 Try a Random Question  |  Total Questions in Quiz: 144  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
World Geography Previously Asked Questions: The Universe — practice the complete quiz, review flashcards, or try a random question.


In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following?