Inner core, outer core, mantle, crust
Inner core, outer core, crust, mantle
Crust, mantle, inner core, outer core
Crust, mantle, outer core, inner core
The theory explaining how the Earth rotates and revolves around the Sun
The theory explaining that the lithosphere/crust is broken into pieces and is moving over the semisolid asthenosphere
The theory explaining how the mantle, outer core, and inner core have extreme heat and pressure.
The theory explaining the density of the Earth's layers.
Iron and nickel
Silicon and oxygen
Helium and magnesium
Sulfur and nickel
South American Plate
North American Plate
Here's an interesting quiz for you.