Plate tectonics PPT Quiz

What is the Earth's crust made of?

• A dense ball of solid Ni and Fe

• A thin layer of cool rock that contains continental and oceanic crust

• A very hot semi-solid rock

• The only liquid layer of the Earth

Which layer of the Earth is liquid?

• Crust

• Mantle

• Inner Core

• Outer Core

What happens to heat and pressure as you go deeper into the Earth?

• It decreases

• It stays the same

• It increases

• It first increases, then decreases

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

• A thin layer of cool rock

• Liquid Ni and Fe

• A dense ball of solid Ni and Fe

• Semi-solid rock

What is the lithosphere composed of?

• Crust and upper mantle

• Upper mantle only

• Crust and lower mantle

• Lower mantle and outer core

What is the asthenosphere part of?

• Crust

• Upper mantle

• Outer core

• Inner core

What do scientists use to determine the composition of the Earth's layers?

• Geological surveys

• Seismic waves

• Magnetic field measurements

• Satellite imagery

Which type of seismic wave can travel through all layers of the Earth?

• Secondary waves (S-waves)

• Longitudinal waves

• Primary waves (P-waves)

• Surface waves

Through which of the Earth's layers do Secondary waves (S-waves) NOT travel?

• Crust

• Mantle

• Liquid outer core

• Solid inner core

What does the theory of continental drift suggest about the continents?

• The continents have always been in their current location.

• All the continents were once together in a single landmass and have drifted apart from each other.

• The continents are moving closer together over time.

• The continents are stationary and the oceans move around them.