Plate Tectonics

Who proposed the theory of continental drift?

• Alfred Wegener

• Marie Curie

• Isaac Newton

• Charles Darwin

What is the process of seafloor spreading?

• Erosion and deposition of sediment on the seafloor

• Contraction and movement towards mid-ocean ridges

• New oceanic crust formation and movement away from mid-ocean ridges

• Formation of new continental crust on the seafloor

What's the name of molten material deep inside Earth from which igneous rocks form?

• lava

• rock

• magma

What is the term used to describe the continuous movement of Earth's lithosphere?

• earthquake

• plate tectonics

• erosion

• volcanism

Which feature is formed by the drifting away of tectonic plates in the middle of the ocean?

• ocean trench

• continental shelf

• mid-ocean ridge

• subduction zone

What is the name of the supercontinent that existed around 300 million years ago?

• Gondwana

• Laurasia

• Rodinia

• Pangaea

Which pieces of evidence were used to justify the theory of Continental Drift?

• Evidence from magma

• Evidence from fossils

• Evidence from rocks

• Evidence from fossils and rocks

What is the name of the underwater mountain range that runs through the Atlantic Ocean?

• Oceanic Mountain Range

• Underwater Ridge

• Mid-Atlantic Ridge

• Atlantic Mountain Range

What is the process by which new oceanic crust is formed?

• continental drift

• seafloor spreading

• subduction

• oceanic convergence

Which is a deep, underwater trough created by one plate subducting under another plate at a convergent plate boundary?

• ocean trench

• mid-ocean ridge

• polar drift

• oceanic drift