Secondary 3 Geography Resources Sustainability Quiz

Answer Key - Secondary 3 Geography Quiz: Resources Sustainability

Note: This content is syllabus-aligned. As past-paper evidence was weak, these answers are based on the 2023 Upper Secondary Geography Syllabus requirements.

Section A: Fundamentals of Sustainability

1. Definition: Development that meets the needs of the present without compromising the ability of future generations to meet their own needs. (2m)
2. Three Pillars: Economic sustainability, Social sustainability, Environmental sustainability. (3m - 1 each)
3. Difference: Renewable resources can be replenished naturally over short periods (e.g., solar, wind) (1.5m), whereas non-renewable resources exist in finite amounts and take millions of years to form (e.g., fossil fuels) (1.5m).
4. Provisioning Service: Examples include urban gardens providing food, or urban forests providing timber/medicinal plants. (2m)
5. Regulating Services: These are services that moderate natural processes. (1m) Example: Urban trees/wetlands absorb excess rainwater (1m), which reduces the risk of flash floods in the city (1m), thereby protecting infrastructure and lives (1m).
6. Cultural Service: Examples include recreational use of parks for mental relaxation (1m), aesthetic enjoyment of greenery (1m), or spiritual connection to nature (1m).
7. Supporting Services: These are basic processes like nutrient cycling or soil formation (2m). Without these, plants cannot grow, meaning provisioning (food) and regulating (climate control) services would cease to exist (2m).

Section B: Urban Hazards and Management

8. Hazards: Any two: Air pollution, Urban Heat Island effect, Flash floods, Traffic congestion, Fire hazards. (2m)
9. UHI and Health: UHI occurs when urban areas trap heat (1m). This can lead to heat-related illnesses such as heatstroke or dehydration (2m), particularly among the elderly or vulnerable populations (1m).
10. Waste and Social Sustainability: Poor waste management leads to unsightly and smelly environments (1m). This can cause conflicts between neighbors (1m) and decrease the overall quality of life and pride of place, leading to social tension (2m).
11. Air Pollution Strategy: Implementation of Electronic Road Pricing (ERP) to reduce vehicle numbers (1m), which lowers the emission of nitrogen oxides and particulate matter (2m).
12. Green Corridors: They provide shade and transpiration (1m), which lowers ambient temperatures (mitigating UHI) (2m). They also provide safe paths for non-motorized transport, reducing pollution (1m).
13. Density and Fire: High population density often means buildings are closer together (1m). This allows fire to spread more rapidly from one structure to another (2m), increasing the potential for mass casualties and property loss (1m).
14. Resilience: Community education/drills (1m) ensure residents know evacuation routes (1m), reducing panic and improving response time during a hazard (1m).

Section C: Building Sustainable Communities

15. Walkability: Reduces reliance on cars, lowering carbon emissions (environmental) (2m). It also encourages spontaneous social interactions among neighbors, strengthening community bonds (social) (2m).
16. Smart Waste: Pneumatic systems remove the need for garbage trucks to enter every street (1m), reducing traffic congestion and vehicle emissions (2m). It also improves hygiene by removing waste from the surface (1m).
17. Economic Trade-off: High initial capital cost for installation (e.g., solar panels or green roofs) (2m). The government may have to divert funds from other social services like healthcare or education to pay for these upgrades (2m).
18. Environmental Stewardship: It is the responsible use and protection of the natural environment (1m). It empowers individuals to take ownership of their surroundings, leading to behaviors like recycling or composting (2m).
19. Vertical Farming: Produces food locally within the city (1m), reducing the "food miles" and carbon footprint associated with imports (2m). This ensures a steady supply of fresh produce regardless of global supply chain disruptions (1m).
20. Evaluation of ABC Waters:
    • Environmental: Effective as it uses natural filtration to clean water and increases urban biodiversity (2m).
    • Social: Effective as it turns drains into beautiful streams/ponds for recreation and mental well-being (2m).
    • Synthesis/Evaluation: Overall highly effective because it integrates nature into the urban fabric, though maintenance costs remain a challenge (2m).