Continental Drift & Plate Tectonics

Which 3 are the main compositional layers of the Earth?

• Core

• Crust

• Atmosphere

• Mantle

Which mechanical layer of the Earth is made of the Crust and the upper Mantle?

• Asthenosphere

• Mesosphere

• Lithosphere

• Atmosphere

What causes the inner core to be SOLID and not liquid like the outer core?

• Pressure

• Heat

• Material

The theory that all the continents were once in one large landmass and drifted apart is called what?

• Ocean Sliding

• Continental Drift

• Land Mass Movement

• Plate Power

Who created the theory of Continental Drift?

• Albert Einstein

• Teddy Roosevelt

• Alfred Wegener

• Marie Curie

What did Alfred Wegener call the supercontinent that existed 200 million years ago?

• Rodinia

• Gondwana

• Pangaea

• United Continents of America

How fast do the tectonic/lithospheric plates move on Earth?

• 1-2 miles per year

• 1-2 inches per year

• 1-2 meters per second

What are the 3 types of plate boundaries?

• Divergent

• Transform

• Oceanic

• Convergent

What is it called when one tectonic plate slides under another plate?

• Subduction

• Redirection

• Transformation

• Evaporation

When 2 continental (land) plates move away from each other at a divergent boundary, what is created?

• Rift

• Mountain

• Glacier

• Earthquake