Lesson Y8-U01-L03

Y8-U01-L03 Plate Boundaries: Where the Action Happens Quiz: KS3 Geography, Unit 7

20 questions

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Lesson Y8-U01-L03, Plate Boundaries: Where the Action Happens: 20 multiple choice questions for the KS3 Geography (National Curriculum), Unit 7: Year 8: Restless Earth: Tectonic Hazards, written with Revision Ninja.

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The 20 questions

  1. Which pairing of boundary type and plate movement is correct?

    • Constructive: plates push together
    • Conservative: plates slide past each other
    • Destructive: plates pull apart and slowly fill the gap with new crust
    • Conservative: plates pull apart
  2. What happens at a destructive boundary?

    • Two plates push together and one sinks down
    • Two plates stop moving and freeze in place
    • Two plates pull apart and magma fills the gap
    • Two plates slide past each other without any change
  3. What is subduction?

    • When a heavier plate sinks under a lighter one
    • When a plate slides sideways along a fault line
    • When new crust cools into a flat, thin sheet
    • When magma rises through a crack in the ocean floor
  4. What is a conservative boundary?

    • Where two plates collide and one melts
    • Where two plates pull apart and new crust forms
    • Where a plate stops moving and never shifts again
    • Where two plates slide past each other sideways
  5. Which real place is an example of a constructive boundary?

    • Japan
    • Iceland
    • California
    • The Andes
  6. Which mountain range was built at a destructive boundary where the Nazca Plate sinks under South America?

    • The Pennines
    • The Alps
    • The Andes
    • The Himalayas
  7. Which fault in California is an example of a conservative boundary?

    • The Mid-Atlantic Ridge
    • The Andes fault line
    • The Great Rift Valley
    • The San Andreas Fault
  8. Which hazard is typical of a conservative boundary?

    • Tsunamis formed by eruptions of new crust
    • Gentle lava flows that build new islands
    • Violent volcanoes, but no earthquakes
    • Earthquakes, with no volcanoes
  9. Which boundary type is the Mid-Atlantic Ridge?

    • Constructive
    • Conservative
    • It is not a plate boundary at all
    • Destructive
  10. Why are eruptions at constructive boundaries usually gentler?

    • The eruptions happen under thick ice that cools the lava quickly, so the lava never flows far
    • The magma is runny, so gas escapes easily instead of building up pressure
    • The magma is thick and sticky, trapping gas and making it explosive
    • The eruptions occur deep underground, so no lava reaches the surface
  11. A destructive boundary causes both earthquakes and violent eruptions. Which explanation is best?

    • Friction and melting as the plate sinks cause stress to build and magma to rise
    • Cold water cools the mantle and cracks the crust above it
    • The plates move apart, so pressure falls and causes eruptions
    • The plates slide past, so no magma can form anywhere along the boundary or beneath the crust
  12. A pupil says conservative boundaries have volcanoes. Which correction is best?

    • Yes, but only very small volcanoes form there, and they erupt only once every few centuries
    • No, because plates at these boundaries never move at all
    • No, no new magma rises there, so they produce earthquakes but not volcanoes
    • Yes, because sliding plates always melt rock and create lava
  13. Why do earthquakes occur at a conservative boundary?

    • The plates pull apart and gaps fill suddenly with lava
    • The plates melt into magma, making the ground shake and creating a new mountain range overnight
    • The plates get stuck on rough rock, pressure builds, and then they jerk free
    • The plates sink under each other and push up a mountain range
  14. On a world map of earthquakes, what pattern would you expect to see?

    • Earthquakes spread evenly across the middle of every continent
    • Earthquakes concentrated near the Equator only
    • Earthquakes only in the centre of large plates
    • Earthquakes in lines along plate boundaries
  15. Why is the middle of a tectonic plate usually safer from earthquakes?

    • Plates in the middle are made of softer rock that absorbs shaking
    • Plates in the middle are made of no rock at all, so the ground there never shakes or moves
    • Earthquakes mainly happen where plates meet and rub or push, not in the stable middle
    • The middle of a plate is always covered by thick ice
  16. Iceland is slowly splitting apart. Which type of boundary is this?

    • Subduction
    • Conservative
    • Destructive
    • Constructive
  17. Which statement compares the three boundary types correctly?

    • Constructive builds crust, destructive destroys crust, and conservative neither builds nor destroys it
    • All three build new crust at the same rate, so the boundaries produce exactly equal amounts of new land and mountains each year
    • All three destroy crust by pushing plates into the mantle
    • Conservative boundaries build more crust than constructive ones
  18. Why do destructive boundaries produce some of the most dangerous hazards?

    • They produce volcanoes only, with no earthquakes at all, and they never melt any rock in the mantle or change the shape of the land
    • They produce only gentle lava flows that rarely cause damage
    • Stress builds as the plates lock, so large earthquakes occur, and melted rock can form explosive volcanoes
    • They have no hazards because the plates are moving apart
  19. A city lies close to a conservative boundary. Which hazard should planners expect most?

    • Earthquakes, because stuck plates release stress in sudden jerks
    • Tsunamis formed by new crust rising from the sea floor
    • Drought caused by the plates pulling apart and drying out the land for many years
    • Long-lasting lava flows that cover the city
  20. Why might a constructive boundary be less deadly than a destructive one?

    • Constructive boundaries are always under the ocean, far from people
    • Constructive boundaries have no people living nearby at all
    • Constructive boundaries have no magma at all, so they never produce any lava or gas
    • Its eruptions are usually gentle and runny, so they are less explosive

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