Lesson Y7-U06-L08

Threatened Ecosystems and Climate Change Quiz: KS3 Geography, Unit 6

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson Y7-U06-L08, Threatened Ecosystems and Climate Change: 20 multiple choice questions for the KS3 Geography (National Curriculum), Unit 6: Year 7: Ecosystems and Biomes, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. What term describes a long-term shift in average weather patterns?

    • Diurnal weather
    • Seasonal variation
    • Climate change
    • Atmospheric pressure

  2. What causes coral reefs to turn white and die?

    • Seawater warming
    • Increased salinity
    • Low water depth
    • Excessive tidal currents

  3. Which term describes an ecosystem easily damaged by environmental changes?

    • Durable
    • Resilient
    • Vulnerable
    • Permanent

  4. Which gases trap thermal energy in Earth's atmosphere?

    • Noble gases
    • Greenhouse gases
    • Inert gases
    • Rare earth elements

  5. Which human activity releases the most greenhouse gases?

    • Recycling household waste
    • Planting broadleaf trees
    • Burning fossil fuels
    • Conserving fresh water

  6. What effect do greenhouse gases have on global temperatures?

    • Constant temperature stability
    • Gradual atmospheric warming
    • Rapid surface cooling
    • Increased rainfall only

  7. Why are polar animals like seals threatened by climate change?

    • Volcanic eruptions
    • Melting sea ice
    • Stronger ocean currents
    • Increased rainfall

  8. Why can a coral reef not move to cooler water?

    • Require constant sunshine
    • Sheltered by deep trenches
    • Fixed to seabed
    • They swim too slowly

  9. What is the main physical cause of coral bleaching?

    • Stronger wave action
    • Warmer ocean water
    • Lower sea levels
    • Increased ocean salt

  10. Between 2010 and 2020, bleaching rose from about 22% to about 45% of reefs. What is the size of this rise?

    • About 23 percentage points
    • About 15 percentage points
    • About 33 percentage points
    • About 45 percentage points

  11. Which human activity is the main driver of rising ocean temperatures?

    • Planting new forests
    • Recycling household waste
    • Burning fossil fuels
    • Using solar panels

  12. What happens if coral bleaching events happen repeatedly without recovery?

    • Fish populations double
    • Corals grow faster
    • Reefs change colour
    • Corals may die

  13. What main climate change effect threatens coral reefs?

    • Rising salinity
    • Acidic rainfall
    • Lower tides
    • Warm seas

  14. Which marine organism is most vulnerable to rapid climate change?

    • Open ocean whales
    • Coastal mangroves
    • Coral reefs
    • Deep sea squid

  15. How does melting sea ice affect polar bears?

    • Reduces hunting ground
    • Improves swimming speed
    • Expands breeding space
    • Increases food supply

  16. In geography, what does a 'because' sentence connect?

    • Fact to opinion
    • Country to capital
    • North to south
    • Cause to effect

  17. What is the main threat of climate change to ecosystems?

    • Decreased rainfall
    • Lack of sunlight
    • Speed of change
    • Too much oxygen

  18. What does a steady upward line on a coral bleaching graph show?

    • A seasonal weather drop
    • A complete recovery
    • A stable environment
    • A worsening problem

  19. Why are ecosystems with a narrow climate range most vulnerable?

    • Low temperature tolerance
    • High species diversity
    • Fast adaptation rates
    • Constant heavy rainfall

  20. Which action directly helps reduce the cause of coral bleaching?

    • Catching more fish
    • Building more roads
    • Clearing rainforests
    • Burning fewer fuels

All KS3 Geography quizzes