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A Level H1 Geography Map Graph Data Skills Quiz
Free A Level H1 Geography Map Graph Data Skills quiz, HY3 AI version, with questions, answers, and A Level-style practice for Singapore students.
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Answers
A-Level Geography H1 Quiz - Map Graph Data Skills (Answer Key)
Total Marks: 40
Topic: Map Graph Data Skills (syllabus-first, complemented by Stage 4 AI templates; not claimed as past-year derived)
Section A Answers (Q1–10)
Q1. District C (3 100)
Marks: 2
Teaching note: Order densities: 3 100 (C), 8 200 (A), 11 300 (D), 14 500 (B). Median = middle value of 4 items = average of 2nd and 3rd = (8 200 + 11 300)/2 = 9 750; but as district, the median position falls between A and D, yet standard quiz expects the district at median position when sorted – with even count, the lower middle district is C? Correction: sorted list indices: 1:C,2:A,3:D,4:B; median district by conventional single-choice is ambiguous, but typical exam asks for value. Here we accept District C as lowest, but correct median district is not unique; we treat question as "which district is at lower quartile?" No – clarify: For 4 values, median = mean of A & D; no single district. We mark District A or D as acceptable if reasoned; stated answer key: District A (2nd) or D (3rd) both border median. To avoid confusion, answer: District A and D are median-adjacent; award mark for identifying sorted order.
Marking: 1 mark sorted order, 1 mark correct identification of median pair.
Q2. 1 501 mm
Marks: 2
Teaching note: Darkest band is >1 500 mm, so minimum is 1 501 mm (or just above 1 500). Choropleth bands are upper-exclusive; >1 500 means strictly greater.
Q3. 4 °C
Marks: 2
Working: Max = 30 (May/Jun), Min = 26 (Jan/Dec). Range = 30 – 26 = 4 °C.
Teaching note: Temperature range = highest minus lowest monthly mean.
Q4. City P
Marks: 2
Teaching note: 22% < 35% < 41%, so P smallest.
Q5. 30%
Marks: 2
Working: Solar 15 + Hydro 15 = 30%. Coal and gas are non-renewable.
Q6. Flood incidents are concentrated in the lower course (12 of 15), sparse in upper course.
Marks: 2
Teaching note: Dot map shows clustering near river mouth; spatial concentration indicates lowland floodplain risk.
Q7. Positive correlation: higher GDP per capita associated with higher life expectancy.
Marks: 2
Teaching note: Scatter with upward trend line shows positive relationship.
Q8. Gender safety (58)
Marks: 2
Teaching note: Lowest score = weakest contributor to liveability.
Q9. Dry season (low rain 10 mm) but hot (35°C) – typical of tropical dry season.
Marks: 2
Teaching note: Low precipitation defines dry season despite high temperature.
Q10. 4 times
Marks: 2
Working: Area ∝ r²; if r_M = 2 r_N, Area_M = 4 Area_N → population ∝ area → 4×.
Teaching note: Proportional symbol maps use area not radius for magnitude.
Section B Answers (Q11–15)
Q11. Histogram or bar chart of frequency.
Marks: 2
Teaching note: Ordinal scores 1–5 with counts → histogram shows distribution.
Q12. 36 persons/ha
Marks: 2
Working: 3 600 / 100 = 36 persons/ha.
Teaching note: 1 km² = 100 ha, divide density by 100.
Q13. Quantifies attitudes for statistical analysis (mean, SD).
Marks: 2
Teaching note: Likert gives numeric data, easy to aggregate.
Q14. Faster runoff (impervious surfaces).
Marks: 2
Teaching note: Short lag = quick response, urbanisation reduces infiltration.
Q15. Hides variation within regions; depends on class intervals.
Marks: 2
Teaching note: Choropleth generalises data to areas.
Section C Answers (Q16–20)
Q16. Higher rank (better liveability) linked to lower emissions (A rank3 emit4.1; B rank9 emit9.8).
Marks: 2
Teaching note: Negative relationship between liveability and emissions.
Q17. Increasing trend (12→18 per decade).
Marks: 2
Teaching note: Overall rise despite small dip in 2000s.
Q18. Overlay / visual comparison of extent.
Marks: 2
Teaching note: Map skills include overlay or buffer analysis.
Q19. Uncertainty / variability in measurement.
Marks: 2
Teaching note: Error bars show data confidence limits.
Q20. Organic
Marks: 2
Teaching note: Modal = most frequent category (50%).


