O Level Geography Resources Sustainability Quiz

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O-Level Geography Quiz - Resources Sustainability

Name: ____________________
Class: ____________________
Date: ____________________
Score: ________ / 60

Duration: 60 Minutes
Total Marks: 60
Instructions: Answer all questions in the spaces provided. Use a blue or black pen.

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Section A: Foundational Knowledge (Short Answer)

Questions 1–5: Focus on definitions and basic concepts.

1. Define the term "sustainable development". [2]
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2. State two differences between an anthropocentric and an ecocentric view of the environment. [2]
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3. Identify two examples of renewable energy resources. [2]
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4. What is meant by "food security"? [2]
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5. Name one method used to increase the yield of crops in intensive farming. [2]
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Section B: Application and Analysis (Structured Response)

Questions 6–15: Focus on cause-and-effect and data interpretation.

6. Explain how the use of chemical fertilizers in agriculture can lead to the process of eutrophication in nearby water bodies. [4]
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7. Describe how a reliable supply of clean water can lead to an increase in a country's average life expectancy. [4]
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8. Explain why the transition to renewable energy sources is often slower in developing countries compared to developed countries. [4]
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9. With reference to the concept of "trade-offs", explain why a government might choose to prioritize economic growth over environmental conservation when developing a new industrial zone. [4]
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10. Explain how the "multiplier effect" can be applied to the economic sustainability of a local community through sustainable tourism. [4]
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11. Describe two ways in which climate change can negatively impact global food production. [4]
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12. Explain the relationship between population growth and the pressure on freshwater resources. [4]
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13. Contrast the environmental impacts of traditional subsistence farming versus large-scale commercial farming. [4]
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14. Explain how the use of "vertical farming" addresses the land constraints faced by city-states like Singapore. [4]
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15. Describe how the "Four National Taps" strategy contributes to Singapore's water sustainability. [4]
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Section C: Evaluation and Synthesis (Extended Response)

Questions 16–20: Focus on judgment and multi-perspective analysis.

16. 'Technological innovation is the only way to achieve global food security.' To what extent do you agree with this statement? [6]
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17. Evaluate the effectiveness of "ecotourism" as a strategy for both environmental conservation and economic development. [6]
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18. 'Climate change is the most significant threat to water security in the 21st century.' Discuss this statement, considering other potential threats. [6]
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19. To what extent can a country achieve "zero waste" through the implementation of a circular economy? [6]
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20. Evaluate whether the benefits of intensifying food production outweigh the environmental costs. [6]
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Answer Key - O-Level Geography Quiz: Resources Sustainability

Section A

1. Sustainable Development: Development that meets the needs of the present without compromising the ability of future generations to meet their own needs. (2m)
2. Anthropocentric vs Ecocentric: Anthropocentric views humans as the center of the universe/nature exists for human use; Ecocentric views nature as having intrinsic value regardless of human utility. (2m)
3. Renewable Energy: Solar, Wind, Hydroelectric, Geothermal, Biomass (Any two). (2m)
4. Food Security: When all people, at all times, have physical, social, and economic access to sufficient, safe, and nutritious food. (2m)
5. Increasing Yield: Use of chemical fertilizers, pesticides, High-Yielding Varieties (HYVs) of seeds, irrigation. (Any one). (2m)

Section B

6. Eutrophication: Fertilizers contain nitrates/phosphates $\rightarrow$ runoff into water bodies $\rightarrow$ stimulates rapid algal growth (algal bloom) $\rightarrow$ algae block sunlight/die and decompose $\rightarrow$ bacteria use up dissolved oxygen $\rightarrow$ aquatic organisms suffocate/die. (4m)
7. Clean Water & Life Expectancy: Access to clean water reduces waterborne diseases (e.g., cholera, dysentery) $\rightarrow$ lowers infant and child mortality rates $\rightarrow$ improved hygiene reduces spread of infections $\rightarrow$ overall increase in average life expectancy. (4m)
8. Renewable Energy Transition: High initial capital cost for infrastructure (solar farms/wind turbines) $\rightarrow$ lack of technical expertise/specialized labor $\rightarrow$ reliance on cheaper, existing fossil fuel infrastructure. (4m)
9. Trade-offs: Economic growth provides immediate jobs and GDP increase $\rightarrow$ poverty reduction for local population $\rightarrow$ government may accept short-term environmental degradation (e.g., deforestation) for long-term economic stability. (4m)
10. Multiplier Effect: Tourists spend money at eco-lodges (direct) $\rightarrow$ lodges buy local organic produce from farmers (indirect) $\rightarrow$ farmers spend income at local markets (induced) $\rightarrow$ overall increase in local wealth and sustainability. (4m)
11. Climate Change & Food: (1) Altered rainfall patterns (droughts/floods) lead to crop failure. (2) Rising temperatures shift suitable growing zones or cause heat stress in livestock/crops. (4m)
12. Population & Water: Higher population $\rightarrow$ increased domestic demand for drinking/sanitation $\rightarrow$ increased demand for agricultural irrigation to feed more people $\rightarrow$ depletion of aquifers/over-extraction of rivers. (4m)
13. Farming Contrast: Subsistence: Low input, low yield, generally lower chemical pollution but may cause localized deforestation (slash-and-burn). Commercial: High input (chemicals), high yield, leads to widespread soil degradation, eutrophication, and loss of biodiversity. (4m)
14. Vertical Farming: Stacks crops in layers $\rightarrow$ maximizes output per square meter of land $\rightarrow$ reduces need for horizontal land expansion $\rightarrow$ allows food production in urban centers, reducing transport distance. (4m)
15. Four National Taps: Diversifies water sources (Local catchment, Imported water, NEWater, Desalinated water) $\rightarrow$ reduces reliance on any single source (e.g., Malaysia) $\rightarrow$ ensures resilience against climate change/drought. (4m)

Section C

16. Technological Innovation:
    • Agree: GMOs, vertical farming, and precision agriculture increase yields and resilience.
    • Disagree: Social factors (distribution, poverty, waste) and political stability are equally important.
    • Conclusion: Technology is a tool, but systemic change in distribution is necessary. (6m)
17. Ecotourism:
    • Environmental: Funds conservation, raises awareness, protects habitats.
    • Economic: Provides alternative livelihoods for locals, reduces reliance on poaching/logging.
    • Evaluation: Effective if managed strictly; otherwise, "greenwashing" or overcrowding can degrade the very nature it seeks to protect. (6m)
18. Water Security Threats:
    • Climate Change: Glacial melt, altered rainfall, saltwater intrusion.
    • Other Threats: Pollution (industrial/agricultural), over-consumption/waste, political conflict over transboundary rivers.
    • Judgment: Climate change is a "threat multiplier" that exacerbates other issues. (6m)
19. Circular Economy:
    • Possibility: Recycling, repurposing, and designing for longevity reduce waste.
    • Constraints: Economic costs of recycling, consumer behavior (throw-away culture), some materials cannot be infinitely recycled.
    • Conclusion: "Zero waste" is an ideal; "near-zero" is achievable with systemic policy and behavioral change. (6m)
20. Intensification Benefits vs Costs:
    • Benefits: Ability to feed a growing global population, lower food prices, reduced need to clear more forest for land.
    • Costs: Soil exhaustion, chemical pollution, loss of genetic diversity in crops.
    • Judgment: Benefits outweigh costs in terms of survival/hunger, but are unsustainable long-term without "sustainable intensification" practices. (6m)