Lesson 3.2.3.4

3.2.3.4 Urban climate Quiz: AQA Geography, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 3.2.3.4, Urban climate: 20 multiple choice questions for the AQA Geography (7037), Unit 2: Human geography, written with Revision Ninja.

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The 20 questions

  1. What is the urban heat island effect?

    • Rural areas being warmer than cities because of farm machinery
    • Urban rainfall falling only at the edges of the city
    • Urban areas being warmer than surrounding rural areas, mainly due to heat-absorbing surfaces and waste heat
    • Cities cooling faster at night because of tall buildings

  2. Which feature of urban areas most directly reduces wind speed at street level?

    • Wide open parks with no tree cover
    • Dry, bare soil in rural market gardens
    • Flat, open car parks at the edge of the city
    • Tall buildings and closely spaced structures that create friction and channel flows

  3. Which air pollutant is most associated with photochemical smog in cities?

    • Methane released from rice paddies
    • Sulphur dioxide from volcanic eruptions
    • Carbon dioxide released from natural sources
    • Ozone formed from nitrogen oxides and volatile organic compounds in sunlight

  4. Urban areas often experience more intense thunderstorms than surrounding rural areas. Which mechanism is most commonly cited?

    • Urban heat creating convective uplift and particles acting as cloud condensation nuclei
    • Strong upward flows over rural forests only
    • Reduced air temperature over the city centre
    • Complete absence of water vapour in the city air

  5. A city's air quality is assessed as poor on days with stagnant high-pressure weather. Why is pollution often worst in these conditions?

    • Strong winds disperse pollution quickly over the city
    • Stable air limits vertical mixing, so pollutants build up near the surface
    • Cold air is less dense, so pollution rises rapidly
    • Heavy rain washes all pollutants out of the air

  6. Which policy is most likely to reduce urban particulate and photochemical pollution?

    • Removing all public transport services from the centre, pushing travellers onto private cars and increasing traffic on main roads
    • Expanding motorway capacity through the city centre, speeding traffic flows so more vehicles pass through the core each hour
    • A low emission zone restricting the most polluting vehicles from entering the city centre
    • Increasing the number of diesel-fuelled delivery vans operating in the centre, which expands the number of commercial journeys each day

  7. Which change in rainfall pattern is most often linked to urban areas?

    • A complete absence of rainfall within city limits, with dry conditions persisting throughout every season because of the urban surface
    • Increased precipitation intensity and frequency of heavy showers downwind of cities
    • Rainfall only at night and never during the day, because the heat island keeps cities dry in daylight hours and wets them after dark
    • A fall in total rainfall across all seasons, as the heat island suppresses cloud formation and reduces annual precipitation in cities

  8. A city centre is 4 degrees Celsius warmer than its rural surroundings on a calm night. Which surface property most likely explains the difference?

    • Dense forest cover that traps heat near the ground, since tree canopies hold warm air beneath them through the night and day
    • Reflective white surfaces that bounce heat away from the city, keeping streets cool throughout the day and throughout the night as well
    • High heat storage in dark, dense building materials and asphalt that release heat after sunset
    • Large areas of open water that cool the air quickly after dusk, because water surfaces lose their stored heat within a few hours

  9. Which measure would most effectively reduce the urban heat island effect?

    • Increasing green cover and reflective roofing materials
    • Removing trees to increase wind speed at street level, on the assumption that open streets will clear the heat faster than shaded ones
    • Raising building density in every neighbourhood, so that more heat-absorbing structures sit close together across the entire city
    • Replacing all green space with dark asphalt, which increases heat absorption across every neighbourhood and raises temperatures further

  10. Which combination best describes the physical impact of urban structures on wind?

    • Wind speeds increased uniformly at all heights across the city, because buildings act as smooth surfaces that let air flow freely
    • No measurable change in wind compared with rural areas, since buildings do not affect the flow of air at street level or above
    • Wind speeds reduced at ground level, with channelling and turbulence between tall buildings
    • Wind direction fixed to a single compass direction everywhere in the city, because street layouts force all air to move the same way

  11. A city's sulphur dioxide concentration rises during a winter with heavy domestic coal burning. Which problem does this most directly cause?

    • Increased ozone in the stratosphere above the city, which blocks ultraviolet radiation and reduces skin problems for residents
    • Greater depth of the urban heat island at noon, with surface temperatures rising to their highest values during the middle of the day
    • Photochemical smog in the early morning only, because sulphur dioxide reacts with sunlight at dawn and disperses before midday
    • Acid precipitation and respiratory problems for residents

  12. Which argument best evaluates the claim that urban climate change is entirely caused by heat from traffic?

    • Heat from traffic is one factor, but surface materials, building layout and pollution also matter
    • Urban climate is determined only by distance from the coast, with inland cities behaving identically whatever their surfaces or layout
    • Traffic accounts for all urban heat because it is the largest energy source in every city, outweighing all other sources combined
    • Traffic has no effect on urban climate or air quality, since vehicle emissions disperse quickly and never reach homes

  13. An urban area has more frequent fog than the countryside. Which explanation best matches the physical processes described in urban climate?

    • Tall buildings cause fog to rise and disappear quickly, so that it is rarely seen at street level and clears within minutes
    • Cities have much lower humidity than rural areas, so fog forms only in the countryside where moisture is retained by vegetation
    • The city releases more water vapour and particles, which can create fog under cool, calm conditions
    • Urban surfaces prevent any condensation at night, because heat stored in buildings keeps moisture in the air as a vapour

  14. Which strategy best addresses urban photochemical smog in a city with high traffic volumes?

    • Building more fossil-fuelled power plants next to housing, so that heat and emissions are supplied close to where people live
    • Encouraging open-air burning of waste in suburbs, since burning helps disperse the pollutants that fuel photochemical smog
    • Reducing vehicle emissions of nitrogen oxides and volatile organic compounds through clean-air policies
    • Increasing the number of petrol stations in the centre, which brings more fuel sales and more refuelling trips into the core

  15. A city introduces a pollution charge on the most polluting vehicles entering its centre. What is the most likely short-term effect on local air quality?

    • No change in air quality because the charge is ignored by almost all drivers, who continue to enter the zone as before the charge
    • Lower roadside concentrations of nitrogen dioxide and particulates in the charged zone
    • A rise in nitrogen dioxide as vehicle numbers grow, because drivers switch to older and more polluting cars to avoid the charge
    • An immediate increase in urban temperatures because the charge diverts vehicles onto roads with more heat-absorbing surfaces

  16. Which statement about urban temperature patterns is most accurate?

    • The heat island effect is strongest during the middle of the day only, because the sun heats urban surfaces far more than rural ones
    • The heat island effect is usually strongest at night, when urban surfaces release stored heat
    • The heat island effect disappears completely in summer, because the high solar input heats rural and urban areas to the same level
    • Urban areas are always colder than the countryside at night, since buildings block the warmth that rural fields radiate after dark

  17. Which combination best describes the effects of urban precipitation on pollutants?

    • Rainfall can wash particulates out of the air but may also carry pollutants into drains and water bodies
    • Rainfall removes pollutants from the air but produces no effect on water quality, because pollutants do not enter drains or rivers
    • Rainfall always increases pollutant concentrations in the air, because water droplets trap particles and hold them near the ground
    • Rainfall has no effect on pollutants in urban environments, since particles and gases are unaffected by water in any form

  18. A city's modelled air quality data show high NO2 along a single arterial road. Which step would best confirm that traffic is the main source?

    • Record the temperature of the city's river at noon for a single week, then compare the readings with the traffic count on the bridge
    • Measure rainfall totals in the city centre across several seasons, comparing the results with the number of cars parked near the roadside
    • Compare concentrations at roadside and background sites to see whether the signal falls off with distance from the road
    • Count the number of trees in the nearest park and compare the total with the number of residential addresses on the main road

  19. Which argument best supports the claim that urban climate effects can be modified by planning?

    • Planning only changes temperatures in rural areas, where farms and hedges can be altered to shape the local climate and rainfall
    • Planning can change building layout, green space and surface materials, which alter heat, wind and rainfall patterns
    • Planning makes the urban heat island stronger by removing trees and open land, since every new building adds heat to the district
    • Planning has no influence because climate is set by the sun alone, so no local decision on buildings or open space can alter it

  20. Which measure best combines urban temperature and air quality data to indicate a health risk in a city?

    • Days with high rainfall and low wind speed together, which keep the air clean by washing pollutants out of the air near the ground
    • Days with high temperatures and high ozone concentrations together
    • Days when the city has its highest number of tall buildings, which are associated with taller structures and wider street canyons
    • Days when traffic counts are lowest across the city, which are usually quiet bank holidays with little road activity in any district

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