Lesson 1.1.3.3

1.1.3.3 How do dryland landforms evolve over time as climate changes? Quiz: OCR Geography, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 1.1.3.3, How do dryland landforms evolve over time as climate changes?: 20 multiple choice questions for the OCR Geography (H481), Unit 1: Landscape Systems, written with Revision Ninja.

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The 20 questions

  1. What name is given to wetter past climatic periods in dryland areas?

    • Interglacial periods
    • Glacial periods
    • Arid cycles
    • Pluvial periods

  2. Which isolated, steep-sided rock hill rises abruptly from a surrounding gentle plain in drylands?

    • Wadi
    • Zeugen
    • Inselberg
    • Yardang

  3. What gentle, bedrock erosional slope forms at the foot of a mountain front in drylands?

    • Mesa
    • Pediment
    • Alluvial fan
    • Bajada

  4. Which weathering process produces frost-shattered debris during colder climatic periods in drylands?

    • Hydrolysis
    • Freeze-thaw action
    • Thermal expansion
    • Salt crystallization

  5. What shallow depression forms beneath an enduring snow patch via localized periglacial weathering?

    • Pingo
    • Kettle hole
    • Cirque
    • Nivation hollow

  6. Which process creates lobed mass-movement deposits on slopes under colder dryland conditions?

    • Mudflow
    • Rockfall
    • Soil creep
    • Solifluction

  7. How are relict pluvial landforms in drylands primarily modified under current arid climates?

    • Solifluction
    • Deep chemical weathering
    • Aeolian processes
    • Glacial scour

  8. What impact does dam construction upriver have on downstream sediment flows in drylands?

    • Increased deposition
    • Enhanced bedload
    • Sediment trapping
    • Accelerated gullying

  9. Which dryland channel feature experiences reduced growth when river flow is artificially diverted?

    • Yardang
    • Wadi
    • Playa
    • Pediment

  10. Which depositional landform contracts in size when upstream sediment trapping occurs behind dams?

    • Dune field
    • Inselberg
    • Mesa
    • Alluvial fan

  11. How does building upstream dams affect long-term pediment development in dryland landscapes?

    • Slows development
    • Prevents weathering
    • Accelerates formation
    • Reverses erosion

  12. What type of climate dominated drylands during Pleistocene high-rainfall phases?

    • Subtropical high
    • Pluvial
    • Periglacial
    • Hyper-arid

  13. Which periglacial landform consists of unsorted, angular rock fragments accumulated on slopes?

    • Sand dune
    • Pediment gravel
    • Alluvial fan
    • Frost-shattered debris

  14. What primary agent formed wadis and alluvial fans seen in present drylands during pluvials?

    • Fluvial action
    • Glacial abrasion
    • Aeolian deflation
    • Wave action

  15. How can future climate change with increased rainfall modify present dryland landforms?

    • Increasing deflation
    • Halting mass movement
    • Stabilising sand dunes
    • Reactivating wadis

  16. Which factor primarily causes water supply shortages in populated dryland landscapes?

    • Over-glaciation
    • High humidity
    • Prolonged drought
    • Rapid afforestation

  17. What happens to downstream delta and fan deposition when river discharge is stored in reservoirs?

    • Deposition increases
    • Deposition decreases
    • Channel widens
    • Sediment coarsens

  18. Which landform is created by coalescing alluvial fans along a mountain front?

    • Inselberg
    • Nivation hollow
    • Bajada
    • Zeugen

  19. What active surface process modifies frost-shattered debris in warm, modern drylands?

    • Glacial plucking
    • Nivation
    • Thermal stress
    • Solifluction

  20. Why are many dryland landforms described as relict landforms?

    • Human-made features
    • Modern landforms
    • Past climate origins
    • Active marine features

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