Earth's Interior Quiz

What is the outermost layer of the Earth composed mainly of solid rock?

• Inner core

• Outer core

• Mantle

• Crust

Where is the mantle located in relation to the Earth's crust and core?

• Inside the core

• Above the crust

• Between the crust and core

• Below the core

What is the primary composition of the Earth's outer core?

• Solid iron and nickel

• Solid rock

• Liquid iron and nickel

• Molten lava

What theory suggests that continents were once joined together in a single landmass called Pangaea?

• Subduction Zones

• Continental Drift theory

• Convection Current theory

• Seafloor Spreading

What occurs at divergent plate boundaries?

• Plates push up against each other forming a mountain chain

• Two plates are moving toward each other

• Two plates move away from each other

• Plates slide sideways past each other

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

• Creating new oceanic crust

• Driving plate tectonics

• Forming mountain chains

• Generating the Earth's magnetic field

What is the thickness of the Earth's mantle beneath some continental regions?

• 5-10 kilometers

• 30 kilometers

• 2,300 kilometers

• Over 2,900 kilometers

What is the temperature range of the mantle near the crust to near the core?

• 500 to 900 degrees Celsius

• 5,000 degrees Celsius

• 4,000 degrees Celsius

• 900 to 1,200 degrees Celsius

What is the primary material that the Earth's crust consists of?

• Liquid iron and nickel

• Plastic

• Solid rock

• Molten lava

What is the function of the outer core in generating the Earth's magnetic field?

• Moving molten metal acting as a dynamo

• Guiding compass needles

• Protecting the Earth from harmful solar radiation

• Solidifying the inner core