Unit 5 Review Lithosphere

1. What is the name given by Wegener to the supercontinent he proposed existed before the current     

    continents?

• Pangaea

• Panamerican

• Atlantis

• Euroamerica

Which of the following appears to cause movement of Earth's tectonic plates?

• Convection Currents below the lithosphere

• energy from volcanic activity

• Magnetic - pole reversals

• Faults in mountain ranges

Which layer of the Earth is made up of tectonic plates?

• Core

• Mesophere

• Asthensophere

• Lithosphere

 The process by which the ocean floor sinks beneath a deep-ocean trench and back into the 

mantle is known as

• Subduction

• Conduction

• Continental Drift

• Convection

Which layer of the earth is the thinnest? 

• Crust

• Mantle

• Core

• Moon

Which of the following does NOT form at a divergent boundary?

• Trench

• Mid ocean Ridge

• Rift Valley

• New Sea Floor

The theory of plate tectonics helps explain the locations of 

• Earthquakes and the lithosphere

• The mantle and the lithosphere

• Vocanoes and the mantle

• Earthquakes and Volcanos

What is the difference between Magma and Lava?

• Magma is denser than Lava

• Magma is outside the volcano, and Lava is inside the volcano

• Magma is inside the volcano, and Lava is outside the volcano

• Magma is hotter than Lava

The composition of the inner and outer core of the earth is mostly of

• silicon and oxygen

• carbon and iron

• iron and nickle

• magnesium and oxygen

A chain of volcanoes commonly forms when

• a contiental plate subducts

• two continents collide

• an oceanic plate subducts

• two plates slide past each other