iGCSE Plate Tectonics 1 - Introduction

Which of the following causes Earth's tectonic plates to move?

• Energy from the Sun
• Magnetic Pole Reversal
• Convection currents in the mantle
• Faults in Mountain Ranges

A divergent boundary occurs when plates ....

• Pull apart
• Come together
• Slide past each other
• subducting

Oceanic Trenches are formed by _______ plate boundaries

• Convergent
• Transform
• Plate
• Divergent

How is it possible for new crust to be formed without increasing the surface area of the Earth?

• Crust is destroyed at the same time it is created
• New crust is underwater where it sinks
• New crust breaks more easily than old crust

This layer of Earth is the thickest part

• crust
• outer core
• mantle
• inner core

What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

Which layer has convection currents?

• Inner Core
• Outer Core
• Mantle
• Crust

Earthquakes and volcanoes are most likely found in which locations?

• At plate boundaries
• in oceans
• in the middle of continents
• in the middle of plates

What is this image...

• Revolving boundary
• San Andreas (Transform)
• Convergent

Which of these layers is ALL solid iron and nickle?

• inner core
• outer core
• lithosphere
• mesosphere