Layers of the Earth Quiz for Stargazer

Which of the following best compares oceanic crust and continental crust?

• A. Oceanic crust is thicker and less dense than continental crust.

• B. Continental crust is thinner and denser than oceanic crust.

• C. Oceanic crust is thinner and denser than continental crust.

• D. Both crusts have the same thickness and composition.

What is the correct relationship between the lithospheric plates and the asthenosphere?

• A. The asthenosphere floats above the lithosphere.

• B. Lithospheric plates are part of the asthenosphere.

• C. The asthenosphere and lithosphere are both rigid layers.

• D. Lithospheric plates float and move on the semi-fluid asthenosphere.

Which of the following correctly matches the Earth's layers with their characteristics?

• A. Lithosphere - solid and brittle; Inner Core - liquid

• B. Asthenosphere - rigid; Outer Core - solid

• C. Lithosphere - rigid; Asthenosphere - plastic-like; Outer Core - liquid; Inner Core - solid

• D. Asthenosphere - solid and brittle; Outer Core - soft and light

Why is the inner core solid despite having a higher temperature than the outer core?

• A. Because the inner core has less pressure.

• B. Because it is made of different materials.

• C. Because the extreme pressure at that depth keeps it solid.

• D. Because the inner core is colder than the outer core.

How do increasing temperature and pressure with depth affect Earth's interior processes?

• A. They have no major impact.

• B. They cause the Earth to shrink.

• C. They slow down mantle convection.

• D. They influence the behavior of materials and drive mantle convection.

What layer of the Earth is responsible for tectonic plate movement?

• A. Inner core

• B. Lithosphere

• C. Asthenosphere

• D. Crust

Which layer is composed mostly of iron and nickel in a liquid state?

• A. Crust

• B. Inner core

• C. Outer core

• D. Mantle

How does the temperature change as you go deeper into the Earth?

• A. It decreases

• B. It stays the same

• C. It increases

• D. It fluctuates

What is the main difference between the lithosphere and asthenosphere?

• A. The lithosphere is softer than the asthenosphere.

• B. The asthenosphere is brittle while the lithosphere is flexible.

• C. The lithosphere is rigid, while the asthenosphere is semi-fluid.

• D. There is no difference between the two.

Which of the following best describes the composition of the mantle?

• A. Solid iron and nickel

• B. Rigid rock with no movement

• C. Hot, semi-solid rock that can flow

• D. Molten lava