Earth's Composition Quiz

Which of the following is NOT one of the four main layers of the Earth?

• Crust

• Inner Core

• Atmosphere

• Mantle

What is the primary composition of the Earth's crust?

• Liquid iron and nickel

• Solid rock

• Molten metal

• Silicate rocks

Which type of crust forms the ocean floor?

• Continental crust

• Mantle crust

• Core crust

• Oceanic crust

What is the main role of the Earth's outer core?

• To provide a solid surface

• To regulate temperature

• To create the Earth's magnetic field

• To support life

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

• 6000 degrees Celsius

• 3000 degrees Celsius

• 1000 degrees Celsius

• 9000 degrees Celsius