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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: 50 minutes
Total Marks: 40
Instructions
- Answer ALL questions in the spaces provided.
- Read each question carefully before writing your response.
- Where data or source material is provided, refer to it in your answers.
- Use geographical terminology where appropriate.
- Marks are indicated in brackets [ ] at the end of each question or part-question.
Section A: Short-Answer Questions (Questions 1–8)
Questions 1–8 carry a total of 16 marks.
1. Define the term renewable resource. Give one example. [2]
2. State two reasons why global demand for energy resources has increased over the past 50 years. [2]
(a) _________________________________________________________________________
(b) _________________________________________________________________________
3. Study Table 1 below, which shows the electricity generation mix for Country X in 2020 and 2024.
| Energy Source | 2020 (%) | 2024 (%) |
|---|---|---|
| Coal | 45 | 30 |
| Natural Gas | 25 | 28 |
| Solar | 5 | 15 |
| Wind | 3 | 10 |
| Hydroelectric | 12 | 10 |
| Nuclear | 10 | 7 |
Table 1
(a) Calculate the total percentage of renewable energy sources in Country X's electricity mix in 2024. Show your working. [1]
(b) Describe the change in the use of coal as an energy source between 2020 and 2024. [1]
4. Explain what is meant by the term sustainable development. [2]
5. State one advantage and one disadvantage of using nuclear energy to generate electricity. [2]
Advantage: ___________________________________________________________________
Disadvantage: ________________________________________________________________
6. Name two strategies a country can adopt to improve the sustainability of its water resources. [2]
(a) _________________________________________________________________________
(b) _________________________________________________________________________
7. Explain why fossil fuels are considered non-renewable resources. [2]
8. Study Figure 1, which shows a photograph of a solar farm in a rural area.
(Imagine a photograph showing rows of solar panels on flat agricultural land.)
State two pieces of evidence from the photograph that suggest solar energy is being harnessed. [2]
(a) _________________________________________________________________________
(b) _________________________________________________________________________
Section B: Structured Response (Questions 9–16)
Questions 9–16 carry a total of 16 marks.
9. Study Figure 2, which shows the global consumption of crude oil from 2000 to 2023.
(Imagine a line graph showing a general upward trend from ~75 million barrels/day in 2000 to ~100 million barrels/day in 2023, with a dip around 2009 and a sharper dip in 2020.)
(a) Describe the trend in global crude oil consumption between 2000 and 2023. [2]
(b) Suggest one possible reason for the dip in consumption around 2020. [1]
10. Explain two environmental impacts of over-extraction of groundwater. [2]
(a) _________________________________________________________________________
(b) _________________________________________________________________________
11. Study the following information:
Country A is a small island nation with limited land area and no fossil fuel reserves. It relies heavily on imported oil for electricity generation. The government plans to invest in offshore wind farms and tidal energy to meet 50% of its electricity needs by 2035.
(a) Explain why Country A is vulnerable in terms of energy security. [2]
(b) Evaluate whether shifting to offshore wind and tidal energy is a sustainable strategy for Country A. [2]
12. Describe two ways in which deforestation contributes to the unsustainable use of forest resources. [2]
(a) _________________________________________________________________________
(b) _________________________________________________________________________
13. Explain how the concept of the 3Rs (Reduce, Reuse, Recycle) can help achieve resource sustainability. Use examples in your answer. [2]
14. Study Figure 3, which shows a bar chart comparing the per capita water consumption (litres/day) of five countries: Singapore (140), Brazil (180), India (120), United States (300), and Kenya (50).
(a) Identify the country with the highest per capita water consumption. [1]
(b) Suggest two reasons why per capita water consumption varies between countries. [2]
(i) ________________________________________________________________________
(ii) _______________________________________________________________________
15. Explain one economic benefit and one social benefit of investing in renewable energy for a developing country. [2]
Economic benefit: ______________________________________________________________
Social benefit: _______________________________________________________________
16. Suggest two reasons why some countries are reluctant to phase out the use of fossil fuels despite their environmental impacts. [2]
(a) _________________________________________________________________________
(b) _________________________________________________________________________
Section C: Extended Response (Questions 17–20)
Questions 17–20 carry a total of 8 marks.
17. "The overconsumption of resources is the greatest threat to sustainability." How far do you agree with this statement? Explain your answer with reference to examples. [2]
18. Study the following extract:
Singapore imports over 90% of its food supply. The government launched the "30 by 30" goal — to produce 30% of the nation's nutritional needs locally by 2030. Strategies include rooftop farming, vertical farms, and aquaculture in land-scarce urban environments.
(a) Explain two challenges Singapore faces in achieving food sustainability. [2]
(i) ________________________________________________________________________
(ii) _______________________________________________________________________
(b) Assess the effectiveness of urban farming technologies in helping Singapore achieve its "30 by 30" goal. [2]
19. Explain how international cooperation can help address the global challenge of resource depletion. Use examples in your answer. [2]
20. A student claims: "Switching entirely to renewable energy is the only way to achieve resource sustainability." Evaluate this statement. [2]
END OF QUIZ
Answers
Secondary 4 Geography Quiz - Resources Sustainability
Answer Key
Section A: Short-Answer Questions (Questions 1–8)
1. Define the term renewable resource. Give one example. [2]
Answer:
- A renewable resource is a natural resource that can be replenished naturally over a short period of time / at a rate comparable to or faster than its rate of consumption. [1]
- Example: solar energy / wind energy / tidal energy / biomass / hydroelectric power / geothermal energy. (Any valid example.) [1]
Marking Notes:
- Award 1 mark for a correct definition that conveys the idea of natural replenishment within a human-relevant timeframe.
- Award 1 mark for any valid renewable resource example. Do not accept "water" alone without qualification (e.g., "rainwater" is acceptable).
2. State two reasons why global demand for energy resources has increased over the past 50 years. [2]
Answer: (a) Rapid population growth has increased the total number of energy consumers worldwide. [1] (b) Industrialisation and economic development in countries such as China and India have raised energy demand. [1]
(Accept any two valid reasons, e.g., urbanisation, rising standards of living, increased use of technology/electronics, growth in transportation.)
Marking Notes:
- Award 1 mark per valid reason, up to 2 marks.
- Answers must be specific; vague answers such as "people use more energy" without explanation should not be credited.
3. Study Table 1.
(a) Calculate the total percentage of renewable energy sources in Country X's electricity mix in 2024. Show your working. [1]
Answer: Renewable sources in 2024: Solar (15%) + Wind (10%) + Hydroelectric (10%) = 35% [1]
Working: 15 + 10 + 10 = 35% [1]
Marking Notes:
- Award 1 mark for the correct total of 35% with working shown.
- If the student includes nuclear as renewable, do not award the mark (nuclear is generally classified as non-renewable in the syllabus context).
(b) Describe the change in the use of coal as an energy source between 2020 and 2024. [1]
Answer: The use of coal decreased from 45% to 30%, a reduction of 15 percentage points. [1]
Marking Notes:
- Award 1 mark for stating the decrease and quantifying it (15 percentage points or from 45% to 30%).
- "Coal use decreased" alone without figures = 0 marks (too vague).
4. Explain what is meant by the term sustainable development. [2]
Answer: Sustainable development refers to meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. [1] It involves balancing economic growth, social well-being, and environmental protection / using resources at a rate that allows natural replenishment. [1]
Marking Notes:
- Award 1 mark for the core definition (present needs, future generations).
- Award 1 mark for elaboration involving the three pillars (economic, social, environmental) or the concept of resource replenishment/balance.
5. State one advantage and one disadvantage of using nuclear energy to generate electricity. [2]
Answer: Advantage: Nuclear energy produces very low greenhouse gas emissions during operation / it has a high energy output from a small amount of fuel / it provides a reliable baseload power supply. [1]
Disadvantage: Nuclear waste is radioactive and difficult to dispose of safely / risk of nuclear accidents (e.g., Chernobyl, Fukushima) / high initial construction costs. [1]
Marking Notes:
- Award 1 mark for a valid advantage and 1 mark for a valid disadvantage.
- "It is clean" without elaboration is too vague for the advantage mark.
6. Name two strategies a country can adopt to improve the sustainability of its water resources. [2]
Answer: (a) Implement water recycling / reclamation systems (e.g., NEWater). [1] (b) Promote rainwater harvesting / build more reservoirs / reduce water leakage in pipelines / implement water pricing to discourage wastage. [1]
(Accept any two valid strategies.)
Marking Notes:
- Award 1 mark per valid strategy, up to 2 marks.
- "Use less water" without specifying how = too vague, do not award.
7. Explain why fossil fuels are considered non-renewable resources. [2]
Answer: Fossil fuels (coal, oil, natural gas) take millions of years to form from the decomposition of ancient organic matter under heat and pressure. [1] They are being consumed at a rate far faster than they can be naturally replenished, meaning they will eventually be exhausted. [1]
Marking Notes:
- Award 1 mark for explaining the long formation time (millions of years).
- Award 1 mark for linking the rate of consumption to the rate of formation (consumption >> replenishment).
8. Study Figure 1 (photograph of a solar farm). State two pieces of evidence from the photograph that suggest solar energy is being harnessed. [2]
Answer: (a) Rows of solar panels / photovoltaic cells are visible in the photograph. [1] (b) The panels are positioned at an angle facing the sun / the panels are large and cover a significant area of land. [1]
(Accept any two observable features from the photograph that indicate solar energy capture.)
Marking Notes:
- Award 1 mark per valid piece of photographic evidence.
- Answers must refer to what can be seen in the photograph, not general knowledge about solar energy.
Section B: Structured Response (Questions 9–16)
9. Study Figure 2 (global crude oil consumption graph).
(a) Describe the trend in global crude oil consumption between 2000 and 2023. [2]
Answer: Global crude oil consumption showed an overall increasing trend from approximately 75 million barrels per day in 2000 to about 100 million barrels per day in 2023. [1] However, there were temporary dips, notably around 2009 (global financial crisis) and a sharper dip around 2020 (COVID-19 pandemic), before consumption recovered. [1]
Marking Notes:
- Award 1 mark for identifying the overall upward trend (with approximate figures).
- Award 1 mark for noting the fluctuations/dips with approximate years.
(b) Suggest one possible reason for the dip in consumption around 2020. [1]
Answer: The COVID-19 pandemic in 2020 led to widespread lockdowns, reduced industrial activity, and a sharp decline in transportation (air travel, commuting), causing oil demand to fall. [1]
Marking Notes:
- Award 1 mark for linking the 2020 dip to the pandemic and its economic/transport impacts.
10. Explain two environmental impacts of over-extraction of groundwater. [2]
Answer: (a) Land subsidence occurs when groundwater is pumped out faster than it is replenished, causing the ground surface to sink, which can damage buildings and infrastructure. [1]
(b) Saltwater intrusion can occur in coastal areas when excessive groundwater extraction lowers the water table, allowing seawater to infiltrate freshwater aquifers and contaminate drinking water supplies. [1]
(Accept other valid impacts: drying up of wells, reduced river flow, loss of wetland ecosystems.)
Marking Notes:
- Award 1 mark per valid environmental impact with a brief explanation.
- State-only answers (e.g., "land subsidence") without explanation = 0.5 marks each at most.
11. Country A case study.
(a) Explain why Country A is vulnerable in terms of energy security. [2]
Answer: Country A has no domestic fossil fuel reserves, so it is entirely dependent on imported oil for electricity generation. [1] This makes it vulnerable to supply disruptions (e.g., geopolitical conflicts, shipping disruptions) and price fluctuations in the global oil market, which could lead to energy shortages or economic instability. [1]
Marking Notes:
- Award 1 mark for identifying the lack of domestic resources / reliance on imports.
- Award 1 mark for explaining the consequences (supply disruption, price volatility).
(b) Evaluate whether shifting to offshore wind and tidal energy is a sustainable strategy for Country A. [2]
Answer: Offshore wind and tidal energy are renewable sources that can provide a consistent and clean energy supply, reducing dependence on imported fossil fuels and lowering greenhouse gas emissions. [1] However, the high initial investment costs, technological challenges of marine-based energy infrastructure, and potential impacts on marine ecosystems may limit the feasibility and effectiveness of this strategy. A diversified energy mix may be more realistic. [1]
Marking Notes:
- Award 1 mark for explaining the benefits (renewable, reduces import dependence, low emissions).
- Award 1 mark for acknowledging limitations or challenges (cost, technology, environmental trade-offs) — this is the evaluative component.
12. Describe two ways in which deforestation contributes to the unsustainable use of forest resources. [2]
Answer: (a) Deforestation removes trees faster than they can regrow, depleting the forest resource base and reducing the availability of timber and other forest products for future use. [1]
(b) Deforestation destroys habitats and reduces biodiversity, disrupting ecosystem services such as carbon sequestration, soil protection, and water regulation that forests provide, making the overall use of forest resources unsustainable. [1]
Marking Notes:
- Award 1 mark per valid way with explanation.
- Answers should go beyond simply stating "trees are cut down" to explain why this is unsustainable.
13. Explain how the concept of the 3Rs (Reduce, Reuse, Recycle) can help achieve resource sustainability. Use examples in your answer. [2]
Answer: The 3Rs promote more efficient use of resources by minimising waste. Reduce means consuming less — for example, using energy-efficient appliances lowers electricity demand and extends the lifespan of energy resources. [1] Reuse means using items again instead of discarding them — for example, refilling water bottles reduces the demand for new plastic production. Recycle means processing waste materials into new products — for example, recycling aluminium cans uses 95% less energy than producing new aluminium from ore, conserving bauxite resources. [1]
Marking Notes:
- Award 1 mark for explaining the concept of the 3Rs with at least one example.
- Award 1 mark for linking the 3Rs to resource sustainability (conservation, reduced demand, energy savings).
- Answers without examples = maximum 1 mark.
14. Study Figure 3 (per capita water consumption bar chart).
(a) Identify the country with the highest per capita water consumption. [1]
Answer: United States (300 litres/day). [1]
Marking Notes:
- Award 1 mark for the correct answer only.
(b) Suggest two reasons why per capita water consumption varies between countries. [2]
(i) Countries with higher levels of economic development / higher standards of living tend to have greater water consumption due to more water-intensive lifestyles (e.g., washing machines, swimming pools, irrigation of gardens). [1]
(ii) Climate differences affect water consumption — countries in hot, arid climates may use more water for irrigation and cooling, while water scarcity in some regions (e.g., Kenya) limits consumption. [1]
(Accept other valid reasons: availability of water infrastructure, government policies, agricultural practices, industrial activity.)
Marking Notes:
- Award 1 mark per valid reason with explanation.
- "Rich countries use more water" without elaboration = 0.5 marks.
15. Explain one economic benefit and one social benefit of investing in renewable energy for a developing country. [2]
Answer: Economic benefit: Investing in renewable energy can reduce a country's dependence on expensive fossil fuel imports, saving foreign exchange and improving the trade balance. It can also create new jobs in the renewable energy sector (e.g., manufacturing, installation, and maintenance of solar panels). [1]
Social benefit: Renewable energy can improve access to electricity in rural or remote areas that are not connected to the national grid, improving quality of life, enabling children to study at night, and supporting healthcare services. [1]
Marking Notes:
- Award 1 mark for a valid economic benefit with explanation.
- Award 1 mark for a valid social benefit with explanation.
16. Suggest two reasons why some countries are reluctant to phase out the use of fossil fuels despite their environmental impacts. [2]
Answer: (a) Fossil fuels are deeply embedded in the economy — many industries, transportation systems, and power plants rely on them, and transitioning to alternatives requires massive investment and infrastructure changes that may be unaffordable for some countries. [1]
(b) Some countries have large fossil fuel reserves and significant employment in the extraction and processing sectors (e.g., coal mining, oil drilling); phasing out fossil fuels would lead to job losses and economic disruption. [1]
(Accept other valid reasons: energy security concerns, lack of renewable technology capacity, political lobbying by fossil fuel industries.)
Marking Notes:
- Award 1 mark per valid reason with explanation.
Section C: Extended Response (Questions 17–20)
17. "The overconsumption of resources is the greatest threat to sustainability." How far do you agree with this statement? Explain your answer with examples. [2]
Answer Guide:
Agreement:
- Overconsumption depletes finite resources (e.g., fossil fuels being burned faster than they form; overfishing leading to collapse of fish stocks such as the Atlantic cod fishery).
- Overconsumption generates excessive waste and pollution (e.g., plastic waste in oceans, carbon emissions driving climate change).
- Rising middle-class consumption in countries like China and India is accelerating demand for energy, water, and raw materials.
Disagreement / Other threats:
- Unequal distribution of resources is also a major threat — some regions suffer scarcity while others overconsume (e.g., water scarcity in Sub-Saharan Africa vs. high consumption in developed nations).
- Lack of technology and infrastructure in developing countries prevents efficient resource use, even without overconsumption.
- Poor governance, corruption, and lack of environmental regulations can lead to unsustainable practices regardless of consumption levels.
Conclusion:
- Overconsumption is a significant threat, but it is not the only one; a combination of overconsumption, inequality, and poor governance collectively threatens sustainability.
Marking Notes (2 marks):
- Award 2 marks for a balanced response that agrees AND disagrees with the statement, supported by at least one specific example and a clear conclusion.
- Award 1 mark for a one-sided argument with an example, or a balanced argument without examples.
- Award 0 marks for vague, unsupported statements.
18. Singapore food sustainability case study.
(a) Explain two challenges Singapore faces in achieving food sustainability. [2]
(i) Limited land area: Singapore is a small island city-state with very little agricultural land, making it difficult to scale up local food production to meet 30% of nutritional needs. Competition for land use (housing, industry, defence) further constrains farming space. [1]
(ii) High costs of urban farming: Technologies such as vertical farms and rooftop farming require significant capital investment, energy for lighting and climate control, and skilled labour, making locally produced food more expensive than imports. [1]
(Accept other valid challenges: reliance on imports makes Singapore vulnerable to global supply chain disruptions; limited water resources for agriculture; small domestic market limits economies of scale.)
Marking Notes:
- Award 1 mark per valid challenge with explanation.
(b) Assess the effectiveness of urban farming technologies in helping Singapore achieve its "30 by 30" goal. [2]
Answer Guide:
- Effective: Urban farming technologies such as vertical farming allow high-yield production in a small footprint, using controlled environments to grow food year-round regardless of weather. Hydroponics and aquaponics use less water than traditional farming. These technologies reduce reliance on imports and enhance food security.
- Limitations: High energy costs for artificial lighting and climate control may offset sustainability gains. Urban farming can only produce certain types of food (e.g., leafy greens) and cannot replace staple imports like rice and meat. The scale of production may be insufficient to meet 30% of total nutritional needs.
- Overall assessment: Urban farming technologies are a useful component of Singapore's food sustainability strategy but are unlikely to be sufficient on their own; they need to be complemented by diversified import sources, food waste reduction, and regional partnerships.
Marking Notes (2 marks):
- Award 2 marks for a balanced assessment that discusses both effectiveness and limitations, with a clear overall judgement.
- Award 1 mark for discussing only effectiveness or only limitations.
- Award 0 marks for vague or unsupported statements.
19. Explain how international cooperation can help address the global challenge of resource depletion. Use examples in your answer. [2]
Answer Guide:
- International cooperation enables countries to share technology, knowledge, and best practices for sustainable resource management. For example, the Paris Agreement (2015) brought together nearly 200 countries to commit to reducing greenhouse gas emissions, addressing the unsustainable use of fossil fuels.
- International organisations and agreements can regulate the exploitation of shared resources. For example, the United Nations Convention on the Law of the Sea (UNCLOS) establishes guidelines for the use of ocean resources, including fishing rights and deep-sea mining regulations.
- Developed countries can provide financial and technical assistance to developing countries to adopt sustainable practices. For example, the Green Climate Fund supports developing nations in implementing renewable energy projects and climate adaptation measures.
Marking Notes (2 marks):
- Award 2 marks for explaining at least two ways international cooperation helps, with at least one specific example.
- Award 1 mark for one valid way with an example, or two ways without examples.
- Award 0 marks for vague or unsupported statements.
20. Evaluate: "Switching entirely to renewable energy is the only way to achieve resource sustainability." [2]
Answer Guide:
Agreement:
- Renewable energy sources (solar, wind, hydro) are inexhaustible on human timescales and produce little to no greenhouse gas emissions during operation, making them essential for long-term sustainability.
- Fossil fuels are finite and their extraction and use cause severe environmental damage (air pollution, oil spills, climate change).
Disagreement:
- Switching entirely to renewable energy is currently impractical — renewable sources are intermittent (solar and wind depend on weather), and energy storage technology (batteries) is still developing and expensive.
- Resource sustainability encompasses more than just energy — it includes water, food, minerals, and biodiversity. Even with 100% renewable energy, unsustainable practices in agriculture, mining, and waste management would still threaten sustainability.
- A more realistic approach involves a diversified energy mix (renewables + nuclear + transitional use of natural gas) combined with energy efficiency measures, conservation, and circular economy practices.
Conclusion:
- While renewable energy is a critical component of resource sustainability, it is not the only way; a holistic approach addressing all resource sectors is necessary.
Marking Notes (2 marks):
- Award 2 marks for a balanced evaluation that agrees AND disagrees, with specific reasoning and a clear conclusion.
- Award 1 mark for a one-sided argument with reasoning.
- Award 0 marks for vague or unsupported statements.
END OF ANSWER KEY