Q.1
The Pacific Ring of Fire stretches from where to where?
  • Southern South America to New Zealand via North America and East Asia
  • Mexico to Russia
  • Australia to Japan
  • The west coast of the USA only
Q.2
When is a volcano formed?
  • At 8.30 every morning
  • When seawater gets into a geothermal vent
  • When molten magma reaches the surface of the Earth
  • When a tectonic plate stops moving
Q.3
Why does the Pacific Ring of Fire exist?
  • The Pacific plate is being forced back down into the mantle by the surrounding plates
  • The Americans and Russians built it
  • The Pacific ocean is very large and powerful enough to create earthquakes and volcanoes
  • Temperatures here are the highest in the world as the air is unpolluted
Q.4
Which of the following is NOT a primary effect of a volcanic eruption?
  • Lava flow
  • Ash cloud
  • Release of toxic gases
  • Lahar
Q.5
How could a volcano create a tsunami?
  • The shockwave from the explosion is transferred to the sea
  • Part of it could collapse into the sea
  • It heats up an area of the sea very quickly, making it expand into a giant wave
  • This is a trick question, it is impossible for a volcano to generate a tsunami
Q.6
Krakatoa is a volcanic island in Indonesia. In 1883, it was much larger until it erupted. Seawater entered the magma chamber and was immediately vapourised, creating a massive explosion that was heard almost 4,000km away and destroying over half of the island. Which of the following is a secondary effect that would have caused massive loss of life and destruction throughout Indonesia?
  • Tsunami
  • Volcanic bombs
  • Ash cloud
  • Toxic gases
Q.7
What other tectonic natural hazard is associated with the Pacific Ring of Fire?
  • Underground volcanoes
  • Flooding
  • Locust attacks on crops
  • Large earthquakes
Q.8
An earthquake occurs when:
  • an undersea volcano erupts
  • two tectonic plates suddenly move
  • a tectonic plate stops moving suddenly
  • only during a landslide
Q.9
Where an oceanic plate is forced back into the mantle where it meets a continental plate, what feature is formed?
  • A geyser
  • A supervolcano
  • A coral reef
  • An ocean trench
Q.10
Which of the following nations would be likely to suffer the greatest loss of life and damage to property if a volcano erupted on their territory? They are all countries on or next to the Pacific Ring of Fire.
  • Canada
  • USA
  • Japan
  • Solomon Islands
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