Lesson 3.1.1.5

3.1.1.5 Water and carbon cycles: quantitative and qualitative skills Quiz: AQA Geography, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 3.1.1.5, Water and carbon cycles: quantitative and qualitative skills: 20 multiple choice questions for the AQA Geography (7037), Unit 1: Physical geography, written with Revision Ninja.

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The 20 questions

  1. How many litres of water fall when 1 mm of rain covers 1 km²?

    • 10,000,000 litres
    • 1,000,000 litres
    • 10,000 litres
    • 100,000 litres

  2. How many litres of water are in one cubic metre?

    • 100,000 litres
    • 10,000 litres
    • 1,000 litres
    • 100 litres

  3. Which unit represents river discharge measured in cubic metres per second?

    • Cumecs
    • Knots
    • Cusecs
    • Litres

  4. What fraction converts a mass of carbon dioxide into carbon mass?

    • 12/32
    • 44/12
    • 12/44
    • 16/44

  5. A store of 1,000 t gains 500 t and loses 320 t. What is the final store?

    • 1,120 t
    • 1,180 t
    • 820 t
    • 1,820 t

  6. A river flows at 36 m³/s. What total volume passes in 24 hours?

    • 5,184,000 m³
    • 2,592,000 m³
    • 3,110,400 m³
    • 864,000 m³

  7. Which statistical measure quantifies the spread of data values around a mean?

    • Spearman's rank
    • Standard deviation
    • Chi-squared
    • Interquartile range

  8. What relationship does a Spearman's rank value of -0.85 indicate?

    • Strong negative correlation
    • Weak negative correlation
    • Strong positive correlation
    • No correlation

  9. Which statistical test compares observed frequencies with expected frequencies?

    • Student's t-test
    • Spearman's rank test
    • Chi-squared test
    • Mann-Whitney test

  10. Which type of data is suitable for a chi-squared test?

    • Continuous measurements
    • Ratio measurements
    • Categorical frequencies
    • Ranked values

  11. Precipitation is 800 mm, evapotranspiration is 500 mm, and discharge is 260 mm. What is the storage change?

    • -40 mm
    • +540 mm
    • +1040 mm
    • +40 mm

  12. If bankfull discharge is 12 m³/s and peak flow is 3.5 times bankfull, what is peak flow?

    • 36 m³/s
    • 3.4 m³/s
    • 42 m³/s
    • 15.5 m³/s

  13. What term describes the time delay between peak rainfall and peak river discharge on a hydrograph?

    • Lag time
    • Baseflow delay
    • Recession time
    • Rising limb

  14. What is the primary statistical test used to assess the strength of association between two continuous variables?

    • Mann-Whitney U test
    • Pearson's product-moment correlation
    • Chi-squared test
    • Student's t-test

  15. Which graph type best displays the relationship and correlation between two paired field variables?

    • Bar chart
    • Rose diagram
    • Pie chart
    • Scatter graph

  16. Which measure of central tendency is best to use when channel width data contains extreme outliers?

    • Range
    • Mean
    • Mode
    • Median

  17. Rain of 18 mm falls on a 2.5 km² catchment. If 60% infiltrates, what is the runoff volume?

    • 27,000 m³
    • 45,000 m³
    • 10,800 m³
    • 18,000 m³

  18. Which graph shows river discharge plotted against time following a storm event?

    • Flood hydrograph
    • Cross-profile diagram
    • Flow duration curve
    • Logarithmic scatter graph

  19. What mass of elemental carbon is contained within 36.7 gigatons of carbon dioxide gas?

    • 36.7 Gt C
    • 10.0 Gt C
    • 26.7 Gt C
    • 134.6 Gt C

  20. Taking all fieldwork measurements on a single sunny afternoon introduces which type of data issue?

    • Systematic error
    • Instrument drift
    • Transcription error
    • Sampling bias

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