Plate tectonics Super Review

Which is the thickest layer of Earth?

• crust

• mantle

• outer core

• inner core

Which layer is thinnest?

• crust

• mantle

• outer core

• inner core

Which layer is plastic-like and allows the crust to flow over it?

• lithosphere

• outer core

• asthenosphere

• inner core

Which layer of Earth is responsible for the Earth's magnetic field?

• crust because it protects the Earth

• mantle because of the convection currents

• inner core because it is solid

• outer core because the liquid material is spinning around the inner core, creating a magnet

Which layer is solid and made of iron and nickel?

• crust

• mantle

• inner core

• outer core

Which layer has strong convection currents that are responsible for the movement of the crust?

• lithosphere: the crust and upper mantle

• asthenosphere: the middle mantle

• outer core

• inner core

Which rock makes up the majority of Earth's continental crust?

• basalt

• granite

• sandstone

• graphite

Which rock makes up the majority of the oceanic crust?

• granite

• basalt

• limestone

• coal

What is the order of Earth's layers from most dense to least dense?

• crust, mantle, outer core, inner core

• crust, outer core, mantle, inner core

• inner core, outer core, mantle, crust

• inner core, outer core, crust, mantle

Which layer is made up of two different layers, the continental and the oceanic?

• core

• mantle

• crust