Earth's Crust and Tectonic Plates

What is the lithosphere made of?

• Only the upper mantle

• The entire mantle

• The Earth's crust and part of the upper mantle

• Only the Earth's crust

How thick are tectonic plates?

• 10 kilometers

• 50 kilometers

• 200 kilometers

• 100 kilometers

Where are oceanic plates located?

• Under the land

• Under the ocean floor

• In the sky

• On top of mountains

What is the oceanic crust made of?

• Silicon and aluminum

• Silicon and magnesium

• Iron and nickel

• Carbon and hydrogen

What elements make up the continental crust?

• Iron and copper

• Carbon and oxygen

• Silicon and aluminum

• Silicon and magnesium