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Secondary 2 Geography Map Graph Data Skills Quiz
Free Sec 2 Geography Map Graph Data Skills quiz, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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Answers
Secondary 2 Geography Quiz - Answer Key (Map Graph Data Skills)
Total Marks: 40
Level: Secondary 2
Topic: Map, Graph & Data Skills
Section A Answers (1 mark each)
Q1. 1234
Teaching note: Four-figure grid reference = easting first (12, between 12–13) then northing (34, between 34–35). Common mistake: writing northing first (3412).
Q2. 18
Teaching note: Six-figure 184 372 → first three digits (184) are easting; nearest full line is 18. The 4 means 4/10 inside the square.
Q3. 1222
Teaching note: From image, hospital is in square 12–13 E / 22–23 N → easting 12, northing 22. Read image_placeholder Q3-fig1: hospital inside 12-13 E / 22-23 N.
Q4. 120 mm
Teaching note: Bar height touches 120 on y-axis labelled Rainfall (mm). Read the value directly.
Q5. Urban population (%)
Teaching note: Y-axis labelled "Urban population (%)" means the value shows percentage of people living in urban areas.
Q6. Country A
Teaching note: 40% > 25%; higher percentage = more forest area.
Q7. 30% (or 3/10)
Teaching note: Transport = 30% of pie. Fraction = 30/100 = 3/10.
Q8. Squatter settlement / informal housing
Teaching note: Dense self-built shelters without formal planning are called squatter settlements (informal housing).
Q9. 10 km
Teaching note: Scale 1 cm = 2 km. Distance = 5 cm × 2 km/cm = 10 km.
Q10. Population
Teaching note: "Pop." is standard abbreviation for Population on graphs.
Section B Answers
Q11. (a) 1 mark: Dense cluster of small corrugated-metal houses / no proper roads.
(b) 1 mark: Open drains and lack of sewage cause water pollution / flooding.
Teaching note: Describe what is seen, then link to environmental harm (e.g., polluted river).
Q12. 2 marks: Population rose steadily from 5.0 million in 2010 to 5.7 million in 2020 (1 mark). Increase of 0.7 million over 10 years (1 mark).
Marking: 1 for trend+start/end figures, 1 for specific figures or mention of rise amount.
Q13. (a) 1 mark: Domestic.
(b) 1 mark: People use water for bathing, cooking, cleaning daily / higher daily need.
Teaching note: Domestic use includes all household needs, usually largest in cities.
Q14. 1 mark: 1142.
1 mark: Road gives access for transport / brings people to lake for recreation or water use.
Teaching note: Lake in 11–12 E / 42–43 N → 1142.
Q15. 1 mark: 65% (45+20).
1 mark: Forest stores carbon / provides habitat / prevents erosion.
Teaching note: Not urban = forest + farm = 65%.
Q16. (a) 1 mark: 5 m (9 − 4).
(b) 1 mark: River erodes more downstream / joins tributaries.
Teaching note: Subtraction gives difference; width increases due to erosion/confluence.
Section C Answers
Q17. 3 marks
- Trend: temperatures stayed between 26°C and 28°C, small fluctuation, no big change (1 mark).
- Range = highest − lowest = 28 − 26 = 2°C (1 mark for method, 1 mark for answer).
Marking descriptors: 1 trend, 1 calc method, 1 final range.
Q18. 4 marks (2 differences × 2 marks each)
Difference 1: Height — A is high-rise with lifts; B is low single-storey (1 mark desc, 1 mark compare).
Difference 2: Materials — A uses concrete/formal; B uses scrap/improvised (1 mark desc, 1 mark compare).
Teaching note: Use photo labels from Q18-fig1. Each clear contrast = 2 marks.
Q19. 4 marks
(a) 2 marks: Area lost decreased from 120 km² (2000) to 40 km² (2020); steady decline every decade.
(b) 2 marks: % decrease = (120 − 40) / 120 × 100 = 80/120 × 100 = 66.7% (1 method, 1 answer).
Teaching note: Show working; common mistake is using wrong base (40 not 120).
Q20. 4 marks
(a) 1 mark: 1444 (end at 14 E / 44 N).
(b) 2 marks: Sampling at 5 points shows changes along river (1); gives representative data, not just one spot (1).
(c) 1 mark: Wear boots / stay away from deep water / go with teacher.
Teaching note: From Q20-fig1, end point grid 14 44; safety = standard fieldwork precaution.








