How North America got its shape

What ocean was created when Rodinia became unstable?

• Indian Ocean

• Pacific Ocean

• Panthalassa Ocean

• Atlantic Ocean

What geological process caused the formation of the Appalachian Mountains?

• Volcanic eruption

• Subduction

• Faulting and folding

• Erosion

What event led to the opening of the Southern Atlantic Ocean?

• Formation of Rodinia

• Collision with the African Plate

• Subduction of the Farallon Plate

• Breakup of Pangea

What geological feature was formed by the subduction of the Farallon Plate?

• Appalachian Mountains

• Rocky Mountains

• Grand Canyon

• Sierra Nevada Mountains

What is the current geological feature fed by a hotspot beneath Yellowstone National Park?

• San Andreas Fault

• Grand Canyon

• Basin and Range Province

• Yellowstone Supervolcano