What makes up the lithosphere?

• Continental crust

• Crust and the upper mantle

• Oceanic crust and continental crust

• Upper mantle

Miners dig into the Earth in search or precious rocks and minerals. In which layer is the deepest explorations made by miners?

• Crust

• Inner core

• Mantle

• Outer core

How do you compare the densities of the Earth’s crust, mantle and core?

• The mantle is less dense than the core but denser than the crust.

• The mantle is less dense than both the core and the crust.

• The mantle is denser than the core but less dense than the crust.

• The mantle is denser than both the core and the crust.

The movement of the lithospheric plates is facilitated by a soft, weak and plastic-like layer. Which of the following layers is described in the statement?

• Asthenosphere

• Atmoshpere

• Lithosphere

• Mantle

Continental crust is _______.

• Thin and light

• Thick and light

• Thin and heavy

• Thick and heavy

What layer is solid because of the pressure of overlying rocks?

• Crust

• Mantle

• Outer Core

• Inner Core

Which layer of the Earth is solid and why?

• The inner core is solid because of movement of the outer core.

• The inner core is solid because of the freezing temperatures.

• The inner core is solid because of the extreme pressure from the other layers.

• The outer core is solid because of the extreme pressure from the other layers.

How do geologists observe Earth’s interior?

• By sending robots deep into the Earth

• By recording studying the movement of seismic waves

• By visiting deep mines in the mantle

• By directly looking at the many layers

The layer of the Earth made up of largely of the rocks basalt and granite is the ____.

• Crust

• Mantle

• Outer Core

• Inner Core

What is the correct order, starting from the surface, of the Earth's layers?

• Crust, mantle, outer core, inner core

• Inner core, outer core, mantle, crust

• Crust, outer core, inner core, mantle

• Mantle, outer core, inner core, crust