Unit 2 Practice Test

Why was Wegner's theory rejected the first time he presented it?

• he lacked a mechanism for how the plates were moving

• his idea was supported initially

• he didn't show up for the conference

• he didn't show any evidence

By what process do continents break apart

• plate tectonics

• terrane

• rifting

• sea-floor spreading

What process is responsible for plate tectonics?

• energy from sun

• the outer layer of earth is melted

• convection currents in the asthenosphere

• all of the above

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

What is represented by the picture? 

• Sea-floor spreading
• Pangea
• How the continents are arranged today
• Volcanoes

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

In sea-floor spreading, molten material rises from the mantle and erupts

• along the edges of all the continents.

• along mid-ocean ridges.

• in deep-ocean trenches.

• at the north and south poles.

The geological theory of _______ states that pieces of Earth’s lithosphere are in constant, slow motion.

• subduction

• plate tectonics

• deep-ocean trenches

• sea-floor spreading

A place where two plates slip past each other, moving in opposite directions, is known as a _______

• transform boundary

• divergent boundary.

• convergent boundary.

• rift valley.

What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway