Earth's Structure Quiz

What are the main layers of the Earth mentioned in the introduction?

• Crust, Mantle, Core

• Crust, Ocean, Core

• Mantle, Ocean, Core

• Crust, Mantle, Ocean

Which type of crust is thicker and forms large land masses?

• Granite crust

• Basaltic crust

• Oceanic crust

• Continental crust

What is the primary composition of oceanic crust?

• Basalt and magnesium

• Silicates and iron

• Nickel and iron

• Granite and aluminum

What is the mantle primarily composed of?

• Liquid magma

• Viscous magma

• Iron and nickel

• Solid rock

What drives the movement of the Earth's crust?

• Magnetic fields

• Seismic waves

• Tectonic plates

• Convection currents

What is the outer core primarily made of?

• Liquid silicates

• Solid silicates

• Liquid iron and nickel

• Solid iron and nickel

Why is the inner core solid despite high temperatures?

• High density

• Low temperature

• High pressure

• Low pressure

What is the temperature range of the outer core?

• 1000 to 2000 degrees Celsius

• 2000 to 3000 degrees Celsius

• 4000 to 5000 degrees Celsius

• 5000 to 6000 degrees Celsius

What method is used to study the Earth's internal structure?

• Drilling deep into the core

• Analyzing ocean currents

• Studying seismic waves

• Observing volcanic eruptions

How do seismic waves help in understanding Earth's structure?

• By measuring temperature changes

• By bending and changing speed

• By reflecting off the surface

• By creating magnetic fields