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Secondary 1 Geography Resources Sustainability Quiz
Free Sec 1 Geography Resources Sustainability quiz, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.
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Secondary 1 Geography Quiz - Resources Sustainability (Answer Key)
Total Marks: 40
Topic: Resources Sustainability
Section A: Multiple Choice
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D (1 mark)
Teaching note: Singapore’s Four National Taps are local catchment, imported water, NEWater, desalination. "Rainforest collection" is not a tap. Common mistake: choosing NEWater as not real. -
B (1 mark)
Mangrove roots trap sediment and weaken waves, protecting coast from erosion. -
B (1 mark)
Water cycles but total store is fixed; local supply can be limited. -
A (1 mark)
Cutting forests releases carbon stored in trees → more greenhouse gases. -
B (1 mark)
Desalination makes fresh water from sea, a sustainable tech strategy.
Section B: Short Answer & Data
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Solid (ice) or gas (water vapour) (1 mark)
Any one correct state. -
1423 (1 mark)
Easting 14 first, northing 23 second (lower-left of reservoir square). -
10 m (1 mark)
30 m − 20 m = 10 m contour interval. -
Any two: habitation, raw materials, recreation, food (2 marks, 1 each)
e.g., (a) timber (b) tourism. -
Pattern: Daily water use per person fell from 155 L (2010) to 140 L (2020). Decrease of 15 L over 10 years. Steady decline. (3 marks: identify start/end 1, trend 1, value use 1)
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To breathe in oxygen-poor muddy soil / support in soft ground (2 marks: 1 for oxygen, 1 for support)
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Site X (1); higher dissolved oxygen supports aquatic life, less pollution (1). (2 marks)
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In tree biomass / soil / leaves (1 mark)
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(a) Coast erosion protection (b) Habitat for fish / carbon storage (2 marks)
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Sewage, factory waste, oil spill, litter (1 mark, any one)
Section C: Structured Response
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(a) Continuous movement of water between land, ocean, air (1 mark)
(b) Dry season → less rain input, evaporation continues → water budget deficit; reservoir levels drop. (3 marks: less input 1, output continues 1, result 1) -
(a) Rose from 140 to 210 million gallons/day (2000–2020), increasing trend (2 marks)
(b) Population growth / more households (2 marks, reasoned) -
Biodiversity: many species in layers (emergent, canopy). Climate: store carbon, release O2. (4 marks: 2 each, with examples)
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NEWater: recycles used water, reduces import need. Desalination: sea water, weather-independent. (4 marks: 2 each with explanation)
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Not sustainable: loses coastal protection, habitat, carbon store. Short-term jobs vs long-term harm. (4 marks: counter 2, reason 2)


