2024-2025 Conceptual Spring Semester Final Exam

Which of the following causes Earth's tectonic plates to move?

• Convection currents in the lithosphere.

• Conduction in the lithosphere.

• Convection currents in the asthenosphere

• Conduction in the asthenosphere

Where would the oldest rock be found on this mid-ocean ridge?

• A

• B

• C

• D

A mid-ocean ridge occurs at a ________ plate boundary.

• transform

• convergent

• divergent

True or False: Oceanic crust always goes under continental crust because oceanic crust is less dense than continental crust.

• True

• False

Which of the following is true?

• The conduction of the liquid iron in the outer core creates Earth's magnetic field.

• The convection of the liquid iron in the outer core creates Earth’s magnetic field.

• The conduction of the liquid in the inner core creates the Earth's magnetic field.

• The convection of the liquid in the inner core creates the Earth's magnetic field.

What type of boundary adds to the lithosphere?

• Continental-Oceanic Convergent

• Continental-Continental Convergent

• Oceanic-Oceanic Convergent

• Transform

• Oceanic-Oceanic Divergent

If crust continues to be added at divergent boundaries, does the surface of the Earth just keep getting bigger?

• No, because crust also keeps getting destroyed at transform boundaries.

• No, because crust gets recycled into the mantle at subduction zones.

• Yes, because the molten material from the mantle continues to rise up through the crust.

• Yes, and the Earth keeps getting bigger at a rate of 1 - 2 inches per year.

Heat is transferred from the Earth's crust to space by __________, but heat is transferred at all other layer boundaries by _________.

• Conduction, Radiation

• Radiation, Convection

• Conduction, Convection

• Radiation, Conduction

For oceanic-continental convergent boundaries, the volcanos occur on the _______ side.

• continental

• oceanic

Island arcs are formed at what type of boundary?

• Continental-continental convergent

• Continental-oceanic convergent

• Oceanic-oceanic convergent

• Oceanic-oceanic divergent

• Transform