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Secondary 4 Geography Resources Sustainability Quiz
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Questions
Secondary 4 Geography Quiz - Resources Sustainability
Name: __________________________
Class: __________________________
Date: __________________________
Score: ________ / 40
Duration: 45 Minutes
Total Marks: 40
Instructions:
- Answer all questions.
- Write your answers in the spaces provided.
- Marks are indicated in brackets [ ] at the end of each question or part question.
- Use specific geographical terminology and refer to case studies where appropriate.
Section A: Resource Management Concepts (Questions 1-5)
1. Define the term 'sustainable development'. [2]
2. Study the statement below:
"Water is a renewable resource, but it can become non-renewable if mismanaged."
Explain this statement with reference to the concept of resource depletion. [3]
3. Distinguish between 'provisioning services' and 'regulating services' in the context of ecosystem services. Give one example for each. [4]
4. Identify one economic cost and one environmental cost associated with the extraction of fossil fuels. [2]
Economic Cost: _________________________________________________________
Environmental Cost: _____________________________________________________
5. Define the term 'carrying capacity' in the context of resource management. [1]
Section B: Water and Food Security (Questions 6-10)
Study Figure 1: Global Water Stress Index (Extract)
(Note: Figure 1 shows a world map highlighting regions with 'High' and 'Extreme' water stress, including North Africa, the Middle East, Central Asia, and parts of India and China.)
6. Describe the global distribution of countries facing 'Extreme' water stress as shown in Figure 1. [2]
7. Explain two physical factors that contribute to water scarcity in the regions identified in Figure 1. [4]
Factor 1: ______________________________________________________________
Factor 2: ______________________________________________________________
8. Singapore imports a significant portion of its food. Explain two challenges Singapore faces in ensuring food security. [4]
Challenge 1: ____________________________________________________________
Challenge 2: ____________________________________________________________
9. Evaluate the effectiveness of desalination as a strategy to solve water scarcity in Singapore. Consider both benefits and limitations. [5]
10. Suggest one reason why international food trade can be risky for small island nations like Singapore. [1]
Section C: Energy and Sustainable Strategies (Questions 11-15)
Study Figure 2: Energy Mix of Country X (2023)
(Note: Figure 2 is a pie chart showing: Coal 40%, Natural Gas 30%, Hydroelectric 15%, Solar/Wind 10%, Nuclear 5%.)
11. Calculate the percentage of renewable energy sources used in Country X. [1]
12. Suggest one reason why Country X still relies heavily on coal despite the availability of renewable alternatives. [2]
13. Explain how the 'Tragedy of the Commons' can lead to the overexploitation of marine resources (e.g., fish stocks). [4]
14. Distinguish between 'mitigation' and 'adaptation' strategies in the context of climate change and resource use. [2]
Mitigation: ____________________________________________________________
Adaptation: ____________________________________________________________
15. State one disadvantage of nuclear energy as a sustainable resource. [1]
Section D: Integrated Resource Sustainability (Questions 16-20)
16. Explain how urbanization increases the demand for water resources. [2]
17. Describe one way in which agricultural practices can lead to soil degradation. [2]
18. "Technological innovation is the most effective way to achieve resource sustainability."
To what extent do you agree with this statement? Use examples to support your answer. [8]
19. Explain the concept of 'circular economy' and how it differs from a 'linear economy'. [2]
20. Suggest one policy measure a government could implement to encourage households to reduce energy consumption. [1]
Answers
Secondary 4 Geography Quiz - Resources Sustainability (Answer Key)
Total Marks: 40
Section A: Resource Management Concepts
1. Define the term 'sustainable development'. [2]
- Marking Scheme:
- 1 mark for meeting present needs.
- 1 mark for not compromising the ability of future generations to meet their own needs.
- Answer: Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
2. Explain the statement: "Water is a renewable resource, but it can become non-renewable if mismanaged." [3]
- Marking Scheme:
- 1 mark for explaining water is renewable (natural water cycle replenishes it).
- 1 mark for explaining mismanagement (extraction rate > recharge rate).
- 1 mark for linking to non-renewable status (aquifer depletion/pollution makes it unusable).
- Answer: Water is renewable because it is replenished through the hydrological cycle (rainfall). However, if humans extract groundwater faster than it can be recharged (over-abstraction) or pollute water sources extensively, the available clean water supply depletes. In this state, it acts like a non-renewable resource because it cannot be restored within a human timeframe.
3. Distinguish between 'provisioning services' and 'regulating services'. Give one example for each. [4]
- Marking Scheme:
- 1 mark for definition of provisioning.
- 1 mark for example of provisioning.
- 1 mark for definition of regulating.
- 1 mark for example of regulating.
- Answer:
- Provisioning services are products obtained from ecosystems (e.g., fresh water, timber, food crops).
- Regulating services are benefits obtained from the regulation of ecosystem processes (e.g., climate regulation, flood control, water purification).
4. Identify one economic cost and one environmental cost of fossil fuel extraction. [2]
- Marking Scheme: 1 mark for each valid cost.
- Answer:
- Economic Cost: High infrastructure costs for drilling/mining; or fluctuating global oil prices affecting national revenue.
- Environmental Cost: Habitat destruction; or oil spills contaminating marine ecosystems; or greenhouse gas emissions contributing to climate change.
5. Define the term 'carrying capacity' in the context of resource management. [1]
- Marking Scheme: 1 mark for correct definition.
- Answer: The maximum population size or level of resource use that an environment can sustain indefinitely without degrading the ecosystem.
Section B: Water and Food Security
6. Describe the global distribution of countries facing 'Extreme' water stress. [2]
- Marking Scheme:
- 1 mark for identifying specific regions (e.g., North Africa, Middle East).
- 1 mark for general pattern (e.g., concentrated in arid/semi-arid zones or developing regions).
- Answer: Countries with extreme water stress are predominantly located in North Africa (e.g., Egypt, Libya) and the Middle East (e.g., Saudi Arabia, Yemen). There are also pockets in Central Asia and parts of South Asia (India/Pakistan).
7. Explain two physical factors contributing to water scarcity in these regions. [4]
- Marking Scheme: 2 marks per factor (1 for identification, 1 for explanation).
- Answer:
- Factor 1: Low Rainfall/Arid Climate. These regions lie in subtropical high-pressure zones or rain shadows, resulting in very low annual precipitation and high evaporation rates, limiting surface water recharge.
- Factor 2: Limited Freshwater Bodies. Lack of major perennial rivers or lakes means reliance on finite groundwater aquifers which are easily depleted.
8. Explain two challenges Singapore faces in ensuring food security. [4]
- Marking Scheme: 2 marks per challenge (1 for identification, 1 for explanation).
- Answer:
- Challenge 1: Limited Land Area. Singapore has very little land available for agriculture due to urbanization and industrial needs, limiting local food production capacity.
- Challenge 2: Reliance on Imports. Singapore imports over 90% of its food, making it vulnerable to supply chain disruptions, global price fluctuations, and export bans by other countries during crises.
9. Evaluate the effectiveness of desalination as a strategy to solve water scarcity in Singapore. [5]
- Marking Scheme:
- 1-2 marks for benefits (e.g., weather-resilient, increases supply).
- 1-2 marks for limitations (e.g., high energy cost, environmental impact).
- 1 mark for overall judgment/conclusion.
- Answer:
- Benefits: Desalination is highly effective as it provides a weather-resilient source of water, reducing dependence on rainfall and imports. It diversifies Singapore's water supply (NEWater, Local Catchment, Imports, Desalination).
- Limitations: It is energy-intensive and expensive compared to other sources. The discharge of brine can also harm marine ecosystems if not managed properly.
- Conclusion: While effective for security, it should be part of a diversified mix rather than the sole solution due to cost and energy constraints.
10. Suggest one reason why international food trade can be risky for small island nations like Singapore. [1]
- Marking Scheme: 1 mark for valid reason.
- Answer: Dependence on other countries means that political instability, trade wars, or pandemics in exporting nations can abruptly cut off supply lines.
Section C: Energy and Sustainable Strategies
11. Calculate the percentage of renewable energy sources used in Country X. [1]
- Marking Scheme: Correct calculation.
- Answer: 25% (Hydroelectric 15% + Solar/Wind 10%). Note: Nuclear is typically classified separately or as low-carbon non-renewable in this context.
12. Suggest one reason why Country X still relies heavily on coal. [2]
- Marking Scheme: 1 mark for reason, 1 mark for explanation.
- Answer: Coal infrastructure is already established and sunk costs are high. Transitioning to renewables requires significant initial investment in new technology and grid upgrades, which may be economically challenging in the short term. Alternatively, coal may be domestically available and cheap.
13. Explain how the 'Tragedy of the Commons' leads to overexploitation of marine resources. [4]
- Marking Scheme:
- 1 mark for defining the concept (shared resource, individual interest).
- 1 mark for applying to fishing (open access).
- 1 mark for consequence (overfishing).
- 1 mark for long-term impact (stock collapse).
- Answer: The ocean is a shared resource where no single entity owns the fish. Individual fishermen act in their own self-interest to maximize their catch to increase profit. Since there is no immediate penalty for taking more fish, everyone increases their effort. This collective action leads to overfishing, depleting fish stocks faster than they can reproduce, eventually causing the resource to collapse for everyone.
14. Distinguish between 'mitigation' and 'adaptation' strategies. [2]
- Marking Scheme: 1 mark for each correct distinction.
- Answer:
- Mitigation: Actions taken to reduce the causes of climate change (e.g., reducing greenhouse gas emissions).
- Adaptation: Actions taken to adjust to the actual or expected future climate impacts (e.g., building sea walls).
15. State one disadvantage of nuclear energy as a sustainable resource. [1]
- Marking Scheme: 1 mark for valid disadvantage.
- Answer: Production of radioactive waste that is difficult and expensive to store safely for thousands of years; or risk of catastrophic accidents.
Section D: Integrated Resource Sustainability
16. Explain how urbanization increases the demand for water resources. [2]
- Marking Scheme: 1 mark for identification, 1 mark for explanation.
- Answer: Urbanization leads to higher population density and increased industrial activity. This results in greater domestic water usage (washing, drinking) and industrial water consumption for manufacturing and cooling processes.
17. Describe one way in which agricultural practices can lead to soil degradation. [2]
- Marking Scheme: 1 mark for practice, 1 mark for impact.
- Answer: Overgrazing by livestock removes vegetation cover, exposing the soil to wind and rain erosion, which strips away the nutrient-rich topsoil and reduces fertility.
18. "Technological innovation is the most effective way to achieve resource sustainability." To what extent do you agree? [8]
- Marking Scheme:
- Level 1 (1-2 marks): Simple agreement/disagreement with limited reasoning.
- Level 2 (3-5 marks): Balanced argument with some examples. Discusses tech benefits and limitations.
- Level 3 (6-8 marks): Well-evaluated argument. Discusses tech alongside other factors (policy, behavior). Strong examples. Clear conclusion.
- Indicative Content:
- Agree (Tech is key): Technology improves efficiency (e.g., drip irrigation saves water), enables new sources (e.g., solar panels, desalination), and helps monitor resources (satellites for deforestation). Without tech, we cannot decouple growth from resource use.
- Disagree (Tech is not enough/Other factors matter): Technology can be expensive and inaccessible to developing nations (digital divide). It may have unintended environmental costs (e.g., e-waste from solar panels). Behavioral change (reducing consumption) and government policy (carbon taxes, regulations) are equally important to drive sustainability.
- Conclusion: Technology is a crucial tool but not a silver bullet. It must be supported by strong governance and changes in consumer behavior to be truly effective.
19. Explain the concept of 'circular economy' and how it differs from a 'linear economy'. [2]
- Marking Scheme: 1 mark for circular definition, 1 mark for contrast with linear.
- Answer: A circular economy aims to keep resources in use for as long as possible through recycling, repairing, and reusing (closed loop). This differs from a linear economy which follows a 'take-make-dispose' model where resources are extracted, used, and then thrown away as waste.
20. Suggest one policy measure a government could implement to encourage households to reduce energy consumption. [1]
- Marking Scheme: 1 mark for valid policy.
- Answer: Implementing tiered electricity pricing where higher consumption leads to significantly higher rates per unit; or providing subsidies for energy-efficient appliances.