Earth's Crust

Who came up with the theory of Continental Drift?

• Thomas Bacon
• Alfred Wegener
• Alber Einstein
• Theodore Roosevelt

Which of the following was not used as a piece of evidence for continental drift?

• Seafloor spreadingq
• Rock Records 
• Fossil Records
• Size of Continents

Sea floor spreading has what crustal feature occur in the middle?

• Volcanic Mountains
• Folded Mountains
• Mid ocean ridges
• Rift valleys

The movement of plates is due to ______ in the magma.

• Convection
• Radiaiton
• Conduction
• Dispersal

At convergent continental-continental plate boundaries a(n) ________ forms.

• Folded mountain
• Island Arc
• Volcanic Mountain
• Rift Valley

Subduction occurs when one plate moves under another. When subduction occurs at a convergent oceanic continental plate boundary which plate will move under the other?

• Oceanic
• Continental

Volcanic mountains occur at which plate boundary?

• Convergent continental-continental
• Divergent oceanic-oceanic
• Convergent continental-oceanic
• Divergent continental-continental

Convergent oceanic-oceanic plate boundaries have which crustal formation?

• Folded mountains
• Island arcs
• Volcanic mountains
• Mid ocean ridges

Mid ocean ridges appear at which plate boundary?

• Divergent Oceanic-Oceanic
• Divergent Continental-Oceanic
• Convergent Continental-Oceanic
• Convergent Oceanic-Oceanic

Divergent continental plate boundaries create what? 

• Rift valleys
• Folded mountains
• Island arcs
• Mid ocean ridges