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Geography Flashcards

6 cards from real O-LEVEL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Geography flashcards as text

  1. What is the tropical rainforest biome characterised by?

    Answer: High temperatures, high rainfall, and dense vegetation year-round

    Tropical rainforests have consistently high temperatures (around 26-27°C), very high annual rainfall (over 2000mm), and dense, layered vegetation with exceptional biodiversity.

  2. What causes earthquakes?

    Answer: The movement of tectonic plates along fault lines

    Earthquakes are caused by the sudden release of energy when tectonic plates move along fault lines, releasing seismic waves that shake the ground.

  3. What is 'urbanisation'?

    Answer: The process by which an increasing proportion of a population lives in urban areas

    Urbanisation is the increasing proportion of a country's population living in urban (city/town) areas, usually driven by rural-urban migration and natural population growth.

  4. Which ocean current moderates the climate of Western Europe?

    Answer: Gulf Stream/North Atlantic Drift

    The Gulf Stream / North Atlantic Drift is a warm ocean current that moderates Western Europe's climate, keeping it warmer than its latitude would suggest.

  5. What is the term for the gradual degradation of land in arid areas due to human activity and climate change?

    Answer: Desertification

    Desertification is the process by which fertile land in dryland areas becomes desert due to drought, deforestation, overgrazing, and poor agricultural practices.

  6. Which gas is primarily responsible for stratospheric ozone depletion?

    Answer: Chlorofluorocarbons (CFCs)

    Chlorofluorocarbons (CFCs), used in refrigerants and aerosols, release chlorine atoms in the stratosphere that catalytically destroy ozone molecules.

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Sources & references

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  1. file.go.gov.sg — Retake policy · verified Nov 2026
  2. seab.gov.sg — Passing score, score release, test delivery, eligibility, fees, registration · verified Nov 2026