Earth's Layers Quiz

What is the main difference between oceanic and continental crust?

• Oceanic crust is thicker than continental crust

• Continental crust is more dense than oceanic crust

• Continental crust is thicker than oceanic crust

• Oceanic crust is more dense than continental crust

What is the main component of the mantle?

• Sandstone

• Peridotite

• Granite

• Basalt

What is the temperature of the liquid outer core?

• 4500 degrees Celsius

• 2500 degrees Celsius

• 5500 degrees Celsius

• 3500 degrees Celsius

Tags

NGSS.HS-ESS2-3

What is the process that causes plate tectonics according to the current scientific consensus?

• Rift zones

• Mid-ocean ridges

• Subduction

• Mantle plumes

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-3

What is the layer at the bottom of the mantle marked by a large thermal gradient and increased heterogeneity?

• Mantle plume layer

• Asteroid layer

• Outer core layer

• D'' layer

What is the main component of the liquid outer core?

• Iron and nickel

• Granite

• Silicon and oxygen

• Peridotite

What is the boundary between the liquid outer core and the solid inner core called?

• Crust boundary

• Core boundary

• Bullen discontinuity

• Mantle boundary

What is the phenomenon called when the inner core rotates faster than Earth as a whole?

• Mantle plumes

• Convection

• Subduction

• Super-rotation

What is the main cause of Earth's magnetic field according to the text?

• Mid-ocean ridges

• Geodynamo

• Subduction

• Mantle plumes

What is the estimated rate at which the inner core is growing?

• 1 millimeter per year

• 5 millimeters per year

• 10 millimeters per year

• 0.5 millimeters per year

Tags

NGSS.HS-ESS2-1