Earth's Layers - Exam Review

What is the outer core of the Earth?

• The solid, rocky outer layer of Earth

• The largest layer of Earth between the crust and the core

• Earth's liquid layer between the mantle and the inner core

• Hot molten rock found below Earth's surface

Which layer of Earth is described as the solid, rocky outer layer on which we live?

• Mantle

• Crust

• Inner core

• Asthenosphere

Where do convection currents that move Earth's tectonic plates occur?

• Crust

• Inner core

• Mantle

• Lithosphere

Which layer is part of the upper layer of Earth's mantle?

• Crust

• Asthenosphere

• Inner core

• Outer core

What is the relatively thick portion of Earth's crust that comprises land?

• Oceanic crust

• Lithosphere

• Continental crust

• Asthenosphere

Which part of Earth's crust is thinner, younger, and denser?

• Continental crust

• Oceanic crust

• Lithosphere

• Mantle

What is the main characteristic of the continental crust compared to the oceanic crust?

• Thicker and older

• Thinner and younger

• Denser and younger

• Less dense and younger

What is the term for the crust that comprises the seafloor?

• Continental crust

• Oceanic crust

• Lithosphere

• Mantle

What is the characteristic of the oceanic crust compared to the continental crust?

• Thicker and older

• Thinner and denser

• Less dense and older

• Thicker and denser

What is the main composition of the lithosphere?

• Water and air

• Crust and upper mantle

• Core and mantle

• Soil and rock