Structure of Earth

The layer of Earth labeled as A is called

• mantle

• asthenosphere

• crust

• core

The layer of Earth labeled as B above is called

• The mantle

• The lithosphere

• The crust

• The core

The layer of Earth labeled as C above is called

• the mantle

• the outer core

• the inner core

• the asthenosphere

The layer of Earth labeled as D above is called

• The mantle

• the inner core

• the outer core

• the crust

The layer of earth that is responsible for the Earth's magnetic field is...

• The lithosphere

• The athenosphere

• the outer core

• the inner core

The lithosphere is best described as

• an area of rigid material made up of the crust and the upper part of the mantle

• an area of rock found in the mantle

• the fluid like material the plates are "floating" on

• an area of melted rock found deep in the mantle

The convection currents that fuel plate tectonics are found in which layer of the earth?

• in the crust

• in the lithosphere

• in the core

• in the mantle

The asthenosphere can best be described as

• The rigid rock material found in the upper mantle

• the plastic-like area of the upper mantle that the lithosphere "floats" on

• The melted rock material found deep in the mantle

• The liquid iron and nickel that move in the core

Which statement best compares and contrasts the inner and outer cores?

• The inner and outer core both are made of iron and nickel, but the metals are in a liquid state in the outer core. On the other hand, the iron and nickel are solid in the core due to the high pressure

• The inner core is made of solid iron and nickel The outer core is made of liquid iron and nickel.

• The outer core is solid iron and nickel, whereas the same material is in a liquid state in the inner core because it is so hot at that depth.

• The inner and outer core are both metal and part of the layers of Earth. They are different too.

Which of Earth’s layers is the thickest?

• crust

• inner core

• mantle

• outer core