Structure of the Earth Quiz

What is the outermost layer of the Earth called?

• mantle

• atmosphere

• crust

• core

Which layer of the Earth is made up of solid iron and nickel?

• Mantle

• Inner core

• Crust

• Outer core

What is the thickest layer of the Earth?

• Core

• Mantle

• Atmosphere

• Crust

Which layer of the Earth is responsible for generating the magnetic field?

• Inner core

• Mantle

• Outer core

• Crust

What is the temperature of the Earth's inner core?

• 5,700 degrees Celsius

• 1,000 degrees Celsius

• 100 degrees Celsius

• 10,000 degrees Celsius

Which layer of the Earth is composed of semi-molten rock?

• crust

• core

• atmosphere

• mantle

What is the boundary between the Earth's crust and mantle called?

• Mohorovičić discontinuity

• Smithsonian boundary

• Himalayan divide

• Pacific rim

What causes the movement of tectonic plates in the Earth's lithosphere?

• The rotation of the Earth's core

• The gravitational pull of the moon

• Convection currents in the Earth's mantle

• Volcanic eruptions

What is the name of the process by which the Earth's crust is constantly being created and destroyed?

• Erosion

• Global warming

• Volcanoes

• Plate tectonics

What is the approximate thickness of the Earth's crust?

• 500-600 kilometers

• 10-20 kilometers

• 30-50 kilometers

• 100-200 kilometers