Plate Tectonics

What causes earthquakes and volcanic eruptions?

• Volcanoes and mountain ranges called fold mountains

• The theory of Plate Tectonics

• Convection currents

The surface of the earth is divided into

• The lithosphere and convection currents

• The Antartic, Eurasian and North American plates

• Convergent plates

• Plates which vary in size.

Natural Hazards...

• are the same as Natural Disasters.

• can be foreseen with the help of technology.

• have impacts that may last for long, even after the event has happened.

• have to do with plate tectonics and their movements.

One way in which natural hazards can be classified is according to

• their magnitude, speed, duration and frequency

• their speed, magnitude, duration and intensity

• their frequency, length, intensity, speed and magnitude.

Choose the correct option:

• A Natural Disaster follows a Natural Hazard.

• A Natural Hazard follows a Natural Disaster.

Mountain ranges is another way of calling

• Supervolcanos

• Plate Tectonics

• Fold Mountains

• Continental crust

Convection currents cause:

• natural disasters

• plates to move

• magma in the mantle

• supervolcanos

The term "Vulnerability" makes reference to

• the possibility of a natural hazard happening

• the potencial to be harmed

• a potential earthquake, flood or drought

• running a risk

What does the concept "supervolcano" make reference to?

• To a National Park in the North-West of the United States

• To an eruption which measures magnitude 8 or more in the Richter Scale

• To an eruption which measures magnitude 8 or more in the Volcano Explosivity Index and creates deposits that are greater than 20km.

• To an eruption which measures magnitude 8 or more in the Volcano Explosivity Index and creates deposits that are greater than 1000km.

An example of Geological Hazard is a

• flood

• tropical cyclone

• volcanic eruption

• drought