LT 4.2 Plate Tectonics Quiz

Which plate is subducting?

• X
• Y
• Z

The plates that cover Earth's surface are made of the

• inner core.
• asthenosphere.
• lithosphere.

Which layer is coolest?

• Crust
• Mantle
• Inner Core

Which is denser? (which one goes BELOW the other when they crash together?)

• Oceanic Crust
• Continental Crust

Mid ocean ridges are created by

• subduction.
• seafloor spreading.

Subduction occurs at

• convergent boundaries.
• divergent boundaries.

Why do California and Alaska have more earthquakes and/or volcanoes than Georgia and Virginia?

• The US west coast (CA and AK) has plate boundaries, the east coast (GA and VA) does not.
• The US west coast (CA and AK) is next to a deeper ocean, the Pacific, than the east coast (GA and VA), which is next to the shallower Atlantic.

What is the primary cause of tectonic plate movement?

• Solar radiation

• Mantle convection

• Gravitational pull

Which type of boundary is associated with the creation of new crust?

• Convergent boundary

• Divergent boundary

• Transform boundary

What is the main component of the Earth's core?

• Carbon and hydrogen

• Silicon and oxygen

• Iron and nickel