7th Earth Intro

Which layer of the Earth is the most dense?

• inner core
• outer core
• mesosphere
• mantle

What is the innermost compositional layer

• inner core
• outer core
• core
• crust

What are the physical layers in order from surface to center

• lithosphere, mesosphere, asthenosphere, outer core, inner core
• lithosphere, asthenosphere, mesosphere, outer core, inner core
• asthenosphere, mesosphere, lithosphere, outer core, inner core
• lithosphere, asthenosphere, mesosphere, inner core, outer core

Which layer is divided up into tectonic plates?

• crust
• mantle
• lithosphere
• asthenosphere

Which layer is the plastic layer that allows tectonic plates to move above?

• lithosphere
• mesosphere
• asthenosphere 
• mantle

This layer is the only liquid layer in the Earth.

• crust
• inner core
• outer core
• mantle

What is the fourth physical layer starting from the inner core? 

• mesosphere
• lithosphere
• asthenosphere
• inner core

_________ is the thickest layer of the Earth. 

• Inner Core
• Outer Core
• Crust 
• Mantle

This layer of Earth is solid Iron and Nickel

• Outer Core
• Mantle
• Inner Core
• Crust

How many layers are there in the Earth?

• 40
• 5
• 89
• 4