Geophysical Hazards- Plate Tectonics and Earthquakes

Which TWO of these pictures show a geophysical hazard?

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What is the name of this layer of the Earth?

• The Outer Core

• The Inner Core

• The Mantle

• The Magma

Which THREE of these statements are TRUE about the Earth's crust?

• It is divided into tectonic plates.

• Continental crust is older than oceanic crust.

• The plates move around slowly.

• Continental crust is denser than oceanic crust.

Alfred Wegener came up with theory of 'Continental Drift' in 1912. Which THREE pieces of evidence below did he use to try and prove his theory?

• Similar plant fossils, such as Glossopteris Ferns, have been found in continents that are now very far apart.

• Some minerals such as iron, gold and copper are found in large quantities at the borders between where continents used to be.

• Similar dinosaur fossils, such as Mesosaurus, that could not swim very far, have been found in continents separated by oceans.

• The shape of India fits perfectly into the shape of South America.

This diagram shows how convection currents in the mantle cause the plates on the crust to move. What is happening at point number 6?

• Liquid rock that has been heated up becomes lighter and rises towards the surface.

• The magma has reached the lower mantle where it starts to heat up again.

• The magma reaches the surface and cools down. It becomes heavier and is pushed to one side.

• The hot core heats the lower mantle.

Which of the following diagrams show a conservative plate boundary?

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At which plate boundary would you find a subduction zone?

• Constructive

• Destructive

• Collision

• Conservative

At which plate boundary is new crust being constantly created?

• Constructive

• Destructive

• Conservative

• Collision

The Himalaya mountain range has been created by which type of plate boundary?

• Constructive

• Destructive

• Conservative

• Collision

At which TWO of these plate boundaries would you NOT find volcanoes?

• Constructive

• Collision

• Destructive

• Conservative