The Earth has a layered structure made up of the core ... the poles were completely opposite to what they are now. Test your knowledge of the Earth's different layers in this quiz.

But how good is your knowledge of Earth's inner structure? Find out by taking this quiz. If you need a hint, hit the yellow button. Good luck! —Equator quiz: Can you name the 13 countries that ...

The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...

All organisms on Earth ride upon a "ferrous wheel" made ... In The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses. (New York Wiley-VCH, 2003): 1–7. Dobermann, A.