- A.Crust is neither created nor destroyed, and there are no volcanoes.
- B.Subduction occurs, where the denser oceanic plate sinks beneath the continental plate.
- C.Plates move apart from one another, allowing magma to rise and create new land.
- D.Rising magma plumes create a chain of shield volcanoes in the middle of a plate.
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Thinka Jun 2023 AQA GCSE-Style Mock — Geography 8035
Paper 1 Section A
- A.Due to the extreme difference in pressure between the eye and the outer edge of the storm.
- B.Because of the Coriolis effect, which is caused by the Earth's rotation.
- C.Due to high sea temperatures above 27 degrees Celsius causing strong localized convection currents.
- D.Because they interact with high-altitude jet streams that blow in opposite directions.
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- A.The wobble in the Earth's axis of rotation over a cycle of approximately 26,000 years.
- B.The tilt of the Earth's axis varying between 22.1 degrees and 24.5 degrees over a 41,000-year cycle.
- C.The change in the shape of the Earth's orbit around the Sun from nearly circular to elliptical over a 100,000-year cycle.
- D.The variation in solar output caused by changes in sunspot activity over an 11-year cycle.
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- **Point 1 (1 mark):** Identify a valid planning strategy, such as mapping out evacuation routes, creating emergency survival kits, or establishing community evacuation shelters.
- **Point 2 (1 mark):** Explain how this reduces the impact. For example, designated evacuation routes ensure that residents can escape coastal areas quickly and in an orderly manner before the storm makes landfall, which minimizes the number of casualties/deaths.
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- **1 mark** for explaining how this strategy reduces the impact (e.g., reducing loss of life, allowing faster response, protecting key resources).
*Note: Do not credit preparation of physical defences (which is protection) or tracking/satellites (which is monitoring/prediction) unless directly linked to how a plan is executed.*
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- **Point 1 (1 mark):** Explain the process of capturing and storing carbon (e.g., capturing \(CO_2\) emissions from power stations and transporting/injecting them deep underground into depleted oil/gas reservoirs).
- **Point 2 (1 mark):** Link this process to the reduction in climate change (e.g., because the greenhouse gas is locked away, it cannot accumulate in the atmosphere and contribute to the enhanced greenhouse effect).
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- **1 mark** for explaining the atmospheric effect (e.g., prevents the gas from entering the atmosphere, reducing the greenhouse effect and subsequent global temperature rises).
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Arguments for Monitoring and Prediction: Earthquakes are extremely difficult to predict accurately. While seismometers can monitor foreshocks, tectonic activity, and radon gas releases, scientists can rarely give a specific date or time for an earthquake. Therefore, prediction alone cannot prevent damage or loss of life, limiting its effectiveness. Early warning systems can provide seconds of warning, allowing trains to stop and gas mains to shut off, but this relies on advanced technology and is only partially effective.
Arguments for Planning and Protection:
1. Protection: Constructing earthquake-resistant buildings (e.g., with shock absorbers, rolling weights, and reinforced foundations) and retrofitting older structures is highly effective. For example, in Chile (2010), strict building codes meant fewer deaths compared to Nepal (2015), where poorly built structures collapsed widely.
2. Planning: Community preparedness through regular drills (e.g., Japan’s Disaster Prevention Day on September 1st), evacuation routes, and stockpiling emergency supplies ensures people know how to react, which significantly lowers casualty rates.
Overall Evaluation: Most will argue that planning and protection are far more effective than monitoring and prediction, because earthquakes cannot currently be predicted with enough warning to evacuate cities, meaning resilient infrastructure (protection) and prepared citizens (planning) are the primary defenses against tectonic hazards.
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Level 3 (5–6 marks): Demonstrates detailed, accurate geographical knowledge of management strategies (AO1). Applies knowledge effectively to specific examples of earthquakes (AO2). Provides a clear, balanced evaluation of the statement, comparing monitoring/prediction with planning/protection, and reaches a reasoned conclusion (AO3).
Level 2 (3–4 marks): Shows reasonable knowledge of earthquake management strategies (AO1). Applies this to examples, though details may be generalised (AO2). Attempts an evaluation but it may be unbalanced, focusing mostly on one side (e.g., protection) or lacking a clear conclusion (AO3).
Level 1 (1–2 marks): Shows basic, descriptive knowledge of what people do to prepare for earthquakes (AO1). Very limited or no application to specific examples (AO2). Little or no attempt to evaluate or make a judgment (AO3).
Indicative Content:
- Monitoring/Prediction: Seismometers, GPS, satellite data, animal behavior. Limited because earthquakes cannot be predicted precisely.
- Protection: Shock absorbers, cross-bracing, automatic window shutters, deep foundations, sea walls.
- Planning: Evacuation maps, emergency kits, earthquake drills, land-use zoning.
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Using Typhoon Haiyan (2013) as an Example:
- Social Impacts: Over 6,000 people died, 4 million were displaced, and Tacloban's hospital was destroyed. Outbreaks of disease occurred due to contaminated water, and there was widespread trauma. These impacts are arguably the most significant as they represent immediate loss of human life and long-term suffering.
- Economic Impacts: The total damage was estimated at around $5.8 billion. The agricultural sector was devastated, destroying 1.1 million tonnes of crops and wiping out the livelihoods of thousands of coconut farmers and fishermen. Tacloban airport was severely damaged, disrupting trade and aid.
Evaluation / To what extent do they agree:
Some might argue that social impacts are the most significant because human lives cannot be replaced, and the psychological trauma and displacement last for generations. Others may argue that economic impacts are more significant in the long run because the loss of livelihoods and cost of rebuilding lock a developing nation into poverty, making it harder to recover and prepare for future storms. Therefore, economic devastation directly drives long-term social suffering. A balanced conclusion should synthesise these points, acknowledging that social and economic impacts are deeply interconnected.
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Level 3 (5–6 marks): Demonstrates thorough knowledge of both social and economic impacts of a named tropical storm (AO1). Applies this detailed knowledge effectively to build a coherent argument (AO2). Evaluates the relative significance of the impacts clearly, showing a well-developed judgment on 'to what extent' they agree with the statement (AO3).
Level 2 (3–4 marks): Shows reasonable knowledge of the impacts of a tropical storm, though details may be slightly generalised or unbalanced between social and economic impacts (AO1). Applies knowledge to the question, but the link between social and economic consequences may not be fully developed (AO2). Attempts to evaluate the statement but lacks depth or a fully supported conclusion (AO3).
Level 1 (1–2 marks): Simple description of general storm impacts (e.g., people died, houses were blown away) without clear categorisation into social/economic (AO1). Limited or no reference to a named tropical storm (AO2). No evaluation or very simple agreement/disagreement without justification (AO3).
Indicative Content:
- Social Impacts: Deaths, injuries, homelessness, disease, lack of clean water, disruption to education/health.
- Economic Impacts: Rebuilding costs, loss of business, crop destruction, infrastructure damage, loss of tourism.
Paper 1 Section B
- A.Great diving beetle
- B.Pond snail
- C.Grey heron
- D.Filamentous algae
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- A.Large, broad leaves to capture limited sunlight
- B.Thick waxy cuticles to shed heavy rainfall
- C.Deep taproots to reach deep groundwater reserves
- D.Broad buttress roots for structural stability
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- A.Overcultivation of crops, which depletes soil nutrients and leaves soil bare
- B.Drip irrigation, which manages water distribution to reduce evaporation
- C.Afforestation projects, which stabilise topsoil with tree root systems
- D.Terracing of hillsides, which prevents soil erosion from surface runoff
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Paper 1 Section C
- A.Longshore drift transports sediment along the coast; where the coastline changes direction, sediment is deposited, building out into the sea; dominant winds can curve the end.
- B.Waves erode a wave-cut notch into a cliff; the overhanging cliff collapses under gravity, leaving a flat platform of rock.
- C.A sandbar joins an island to the mainland due to deposition in the low-energy zone behind the island.
- D.Constructive waves push large pebbles up the beach to form a ridge known as a berm.
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- A.Vertical erosion of the river bed during times of low discharge.
- B.Repeated flooding of a river, where the coarsest sediment is deposited first on the river banks as the water loses energy.
- C.Chemical weathering dissolving limestone rocks along the river banks.
- D.The migration of a meander bend downstream through lateral erosion.
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Paper 2 Section A
Figure 1: Projected Urban Population (%) by Continent in 2050:
- Africa: 59%
- Asia: 66%
- Europe: 82%
- Latin America and the Caribbean: 89%
- North America: 90%
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- Population in 1970: 1.4 million
- Population in 2020: 14.3 million
Give your answer in millions to one decimal place.
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- Bristol: 47%
- London: 34%
- Manchester: 40%
- Birmingham: 30%
Identify the city with the lowest recycling rate that would have the shortest bar on the graph.
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- Oak Park: 4.2 hectares
- Meadow Park: 1.8 hectares
- Riverview Park: 5.5 hectares
- Grange Park: 3.1 hectares
Calculate the range of the park areas in hectares.
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1. **Provision of Infrastructure:** Installing piped water and sanitation systems prevents sewage from running in the streets. This significantly reduces the incidence of water-borne illnesses like cholera, improving overall physical health and life expectancy.
2. **Self-Help and Upgrading Schemes:** Providing low-interest loans or building materials (such as bricks and cement) allows residents to upgrade their homes from temporary structures to safer, more durable dwellings. This reduces the risk of collapse during landslides or heavy storms.
3. **Social and Economic Improvements:** Building schools, clinics, and better transport links (like cable cars or bus rapid transit) connects isolated settlements to the wider city. This allows residents better access to education, healthcare, and formal employment opportunities, helping to break the cycle of poverty.
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- **1 mark** for identifying a valid planning method/scheme.
- **1 mark** for explaining how this method improves the quality of life for the residents (e.g., links to health, safety, or income).
**Example responses:**
- Installing clean water standpipes and sewage systems (1 mark) means fewer water-borne diseases, which improves physical health and child survival rates (1 mark).
- Providing residents with formal legal ownership/tenure of their land (1 mark) gives them the security to invest money into improving their homes without fear of eviction (1 mark).
- Building new transit systems, such as cable cars (1 mark), improves access to jobs in the main city centre, helping residents earn a more reliable income (1 mark).
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Paper 2 Section B
| Country | GNI per capita (US$) |
|---|---|
| Country A | 1,045 |
| Country B | 4,250 |
| Country C | 12,630 |
| Country D | 45,600 |
Using Table 1, identify which country represents a Low Income Country (LIC), which is defined by the World Bank as having a GNI per capita of $1,085 or less.
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Accept: 'A' or 'Country A'.
Do not accept: Country B, Country C, or Country D.
The key for the map is as follows:
- Category 1: 0% to 9% (Light Grey)
- Category 2: 10% to 19% (Mid Grey)
- Category 3: 20% or more (Dark Grey)
Region Y has 14% of its workforce employed in agriculture (primary sector). State which shade Region Y should be coloured on the map.
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Accept: 'mid grey', 'Mid-grey', or 'Category 2'.
Do not accept: 'Light Grey' or 'Dark Grey'.
- Agriculture (Primary sector): Decreased from 35% to 10%
- Manufacturing (Secondary sector): Increased from 20% to 45%
- Services (Tertiary sector): Remained stable at 45%
Calculate the total percentage decrease in the contribution of the primary sector to GDP over this period.
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Accept: '25' or '25%'.
Do not accept: '-25%' (unless indicating a decrease of 25) or '35%'.
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Firstly, when a country's debt is cancelled, it no longer has to make expensive debt service payments. This immediately frees up valuable national revenue. For example, under the Highly Indebted Poor Countries (HIPC) initiative, countries like Uganda redirected saved funds directly into primary education and free healthcare.
Secondly, investing these funds into public services has a multiplier effect: a healthier and more educated population increases labor productivity, while improved infrastructure (like roads and electricity) makes the country more attractive to foreign direct investment (FDI). Over time, this stimulates economic growth, raises the Gross National Income (GNI) per capita, and helps narrow the development gap between poorer and richer nations.
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Offers a clear, developed explanation of the process. Shows a sequential link between the cancellation of debt, the redirection of government funds, and how this directly leads to reduced development disparity (e.g., through improvements in HDI indicators like education, healthcare, or economic growth).
Level 1 (1-2 marks):
Offers a basic or simple explanation. Identifies that debt relief means a country has more money or does not have to pay back loans, but the link to reducing the development gap is weak or undeveloped.
Example points for development:
- Debt relief frees up government funds (1) which can be reinvested into primary healthcare to increase life expectancy (1).
- Less money spent on interest payments (1) means more budget can be allocated to infrastructure projects like transport networks, attracting FDI and boosting the economy (1).
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Key strategies implemented to reduce its environmental impact include:
- **Renewable Energy Generation:** The factory features one of the UK's largest rooftop solar array installations, with over 21,000 photovoltaic panels. This generates around 30% of the plant's electricity requirements, significantly reducing carbon emissions and reliance on fossil fuels.
- **Energy Conservation:** The building was designed to maximize natural daylight through extensive glazing and uses highly efficient LED lighting controlled by smart sensors, minimising energy waste.
- **Water Management:** A sophisticated rainwater harvesting system is used to flush toilets and support industrial processes, drastically lowering the demand on the local mains water supply.
- **Biodiversity Preservation:** During construction, JLR created ecological corridors, planted native trees, and established wildlife habitats (including boxes for bats and birds) around the facility to offset the loss of greenfield space and promote local biodiversity.
- **Waste Reduction:** The plant operates a strict zero-waste-to-landfill policy, with almost 100% of manufacturing waste being recycled or recovered as energy.
Evaluation of success: The site successfully achieved the BREEAM 'Excellent' rating, representing best practice in sustainable building design. By integrating green energy, water conservation, and biodiversity plans, the development proves that large-scale heavy manufacturing can significantly decouple industrial growth from severe environmental degradation.
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- Clear, detailed evaluation of environmental sustainability strategies used in a named modern industrial development.
- Specific, accurate details/facts about the chosen UK example (e.g., JLR Wolverhampton, Torry Research Station, or similar).
- Well-developed explanations of how these strategies reduce environmental impact (e.g., reducing carbon footprints, conserving resource use, promoting biodiversity).
- Offers a balanced conclusion or evaluation of how successful these measures are.
**Level 2 (3-4 marks):**
- Explains strategies used to make modern industrial developments more sustainable.
- May refer to a specific UK development but lacks precise details, or describes a range of generic strategies without linking them effectively to a real-world case study.
- Shows some understanding of how these strategies reduce environmental impacts.
**Level 1 (1-2 marks):**
- Basic, fragmented points about how factories can be 'green' (e.g., 'they use solar panels' or 'they recycle').
- No specific UK example is named, or the example is named but not integrated into the answer.
- Lacks geographical detail or evaluation.
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Paper 2 Section C
- A.A reduction in the number of households nationwide.
- B.The decline of water-intensive leisure facilities like golf courses.
- C.Population growth and the widespread use of domestic appliances like washing machines.
- D.A shift towards heavy industrial manufacturing across the country.
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- A.It causes massive visual pollution from towering cooling chimneys.
- B.It risks contaminating groundwater sources with chemical-laden fracking fluids.
- C.It requires the complete flooding of large valleys to build reservoirs.
- D.It results in high radioactive waste disposal issues similar to nuclear power.
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- **1 mark**: Identifies a basic point about moving water from where it is wet to where it is dry, or identifies areas of surplus and deficit.
- **2 marks**: Outlines a simple chain of explanation, linking the geographical distribution of rainfall/population (e.g., North/West surplus to South/East deficit) to the movement of water.
- **3 marks**: Provides a fully developed explanation showing a clear understanding of water transfer (e.g., explaining how transport from areas of high rainfall/low population density to areas of low rainfall/high population density balances supply and demand to resolve shortages).
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Desalination involves removing salt from seawater to produce fresh, drinkable water. It is increasingly used in water-stressed regions, but its effectiveness varies depending on a country's wealth and resources.
Arguments for effectiveness (advantages):
- Reliability: It is not dependent on weather or climate, making it highly reliable during droughts.
- Abundance: Since oceans hold 97% of the world's water, it offers a virtually limitless supply.
- Proven success: Countries like Saudi Arabia, UAE, and Israel rely heavily on desalination to meet domestic and agricultural water needs, proving its viability for high-income nations.
Arguments against effectiveness (limitations/drawbacks):
- High Cost: Desalination plants are extremely expensive to construct and maintain. This makes them unaffordable for many water-stressed LICs (e.g., parts of Sub-Saharan Africa).
- Energy Intensive: The process (such as reverse osmosis) requires vast amounts of electricity. If powered by fossil fuels, this contributes significantly to greenhouse gas emissions and climate change.
- Environmental Impact: The process produces a highly concentrated salt waste product (brine), which is often pumped back into the sea, damaging local marine ecosystems.
Conclusion: Desalination is highly effective for wealthy, energy-rich countries but remains an unsustainable and unaffordable luxury for poorer nations, which must rely on alternative strategies like appropriate technology.
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Level 2 (3–4 marks): Clear description of desalination with some explanation of its advantages and/or disadvantages. Some attempt at assessment, though it may lack balance or specific detail.
Level 1 (1–2 marks): Basic points about desalination. Limited understanding of how or where it is used. No real assessment.
Key Content to Look For:
- Definition of desalination (salt removal from seawater).
- Advantages: endless supply, climate resilience, useful in the Middle East/arid wealthy nations.
- Disadvantages: high capital and operational costs, energy consumption (carbon footprint), environmental damage from brine disposal.
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Appropriate technology refers to equipment and techniques that are suited to the wealth, skills, and needs of the local community. It is a key method for achieving sustainable water supplies in LICs.
How it achieves sustainability:
- Economic Sustainability: Technologies like hand pumps (e.g., the Afridev pump) or rainwater harvesting jars are inexpensive to install compared to large-scale dams. They use cheap, locally sourced materials, meaning the community does not need expensive imported parts or foreign engineers to keep them running.
- Social Sustainability: Because the technology is simple, local people (often women) can be trained to maintain and repair it. This empowers the community and ensures a reliable, long-term source of clean water. Improved access to water nearby reduces water-borne diseases and frees up time for children (especially girls) to attend school, boosting long-term development.
- Environmental Sustainability: Small-scale methods, such as sand dams or gravity-fed schemes, work with the natural environment. Sand dams store water underground behind a concrete wall built across a seasonal river. This filters the water naturally and prevents evaporation without disrupting local ecosystems or over-exploiting deep aquifers.
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Level 2 (3–4 marks): Clear explanation of one or more appropriate technologies. Shows some understanding of why they are suitable for LICs, with a basic link to sustainability.
Level 1 (1–2 marks): Simple, descriptive points about water collection or basic technology (e.g., wells). Limited or no reference to sustainability or appropriateness.
Key Content to Look For:
- Definition of appropriate technology (simple, low-cost, locally maintainable).
- Examples: Afridev hand pumps, sand dams, rainwater harvesting, gravity-fed systems.
- Social benefits: health improvements, community ownership, education.
- Economic benefits: low capital cost, local spare parts.
- Environmental benefits: low energy use, protection of local water resources.
Paper 3 Section A
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- Reduces travel times/congestion (1)
- Creates construction jobs (1)
- Attracts more shoppers/tourists to the quieter town centre (1)
Award 1 second mark for development/explanation:
- ...which lowers transport costs and improves efficiency for local delivery firms (1)
- ...who then spend their wages in the local area, multiplying the economic benefits (1)
- ...leading to increased revenue for local retailers (1)
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Award 2nd mark for explaining the source of the conflict (e.g., because the visual and noise pollution directly degrades the residential quality of life, which clashes with the industrial scale of the renewable energy development).
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**Example response:**
Firstly, a conflict can arise between tourists/recreational users and local residents. The reservoir attracts visitors for water sports and walking, which leads to increased traffic congestion, litter, and parking issues on narrow rural roads, upsetting locals who want to preserve their quiet way of life (2 marks).
Secondly, a conflict can occur between environmental conservationists and the water company. The water company needs to flood the valley to secure water supplies, but this floods valuable ecosystems and agricultural land, destroying habitats and displacing local wildlife, which conservation groups will strongly oppose (2 marks).
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- Simple, isolated statements explaining why people might disagree or be unhappy about the reservoir.
- Lacks development or clear link to specific stakeholder groups.
- *e.g., 'Some people want to sail on the water but this makes noise which annoys people living nearby.' (1 mark)*
- *e.g., 'Local farmers will lose their land to the floodwaters, whilst tourists get a new place to visit, which causes traffic.' (2 marks)*
**Level 2 (3-4 marks):**
- Clear, developed explanations showing how the multi-use nature of the reservoir creates opposing views between clearly identified stakeholders.
- Demonstrates good geographical understanding of the social, economic, or environmental tensions involved in resource management.
- *e.g., 'Environmentalists will clash with the developers because flooding the upland valley destroys fragile habitats and reduces biodiversity. At the same time, local farmers will conflict with the water company as prime grazing land is lost to the reservoir, threatening their agricultural livelihoods.' (4 marks)*
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**Example response:**
Firstly, a conflict can arise between tourists/recreational users and local residents. The reservoir attracts visitors for water sports and walking, which leads to increased traffic congestion, litter, and parking issues on narrow rural roads, upsetting locals who want to preserve their quiet way of life (2 marks).
Secondly, a conflict can occur between environmental conservationists and the water company. The water company needs to flood the valley to secure water supplies, but this floods valuable ecosystems and agricultural land, destroying habitats and displacing local wildlife, which conservation groups will strongly oppose (2 marks).
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- Simple, isolated statements explaining why people might disagree or be unhappy about the reservoir.
- Lacks development or clear link to specific stakeholder groups.
- *e.g., 'Some people want to sail on the water but this makes noise which annoys people living nearby.' (1 mark)*
- *e.g., 'Local farmers will lose their land to the floodwaters, whilst tourists get a new place to visit, which causes traffic.' (2 marks)*
**Level 2 (3-4 marks):**
- Clear, developed explanations showing how the multi-use nature of the reservoir creates opposing views between clearly identified stakeholders.
- Demonstrates good geographical understanding of the social, economic, or environmental tensions involved in resource management.
- *e.g., 'Environmentalists will clash with the developers because flooding the upland valley destroys fragile habitats and reduces biodiversity. At the same time, local farmers will conflict with the water company as prime grazing land is lost to the reservoir, threatening their agricultural livelihoods.' (4 marks)*
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Paper 3 Section B
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State the title of your enquiry: ____________
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Enquiry Title: 'How and why does bedload shape and size change downstream along the River Cardron?'
To a large extent, our primary data supported our original hypothesis that bedload size decreases downstream. At Site 1 (upstream), our systematic sampling of 15 pebbles showed a mean intermediate axis of 18.4 cm. By Site 5 (downstream), the mean axis had decreased significantly to 4.1 cm. This strongly supports the hypothesis as it reflects the cumulative impact of erosion processes like attrition. However, the data did not support the hypothesis perfectly because Site 3 showed an anomaly where the mean pebble size increased to 12.3 cm. This was due to a local landslide supplying fresh, angular material to the channel. Therefore, the data supports the hypothesis to a very high extent, although local anomalies show that downstream trends are not always completely uniform.
PastPaper.markingScheme
- Offers a clear, reasoned judgment addressing 'to what extent'.
- Uses specific, detailed evidence/data from their own fieldwork to support the explanation.
- Clearly connects the primary data collected directly back to the original hypothesis/aim.
Level 1 (1-2 marks) (Basic response):
- Describes the hypothesis or the data collected, but with limited or absent evaluation of 'to what extent'.
- Brief or generic reference to their fieldwork without specific data points or detailed context.
- The link between the data and the hypothesis is weak or purely descriptive.
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PastPaper.workedSolution
In our physical geography enquiry, we investigated the impact of wooden groynes on beach profile at Hornsea. To represent our primary data, we used drawn cross-sectional profiles on graph paper for our updrift and downdrift sites.
This presentation method was highly effective because it provided a clear, scale-accurate visual comparison of the beach gradient on either side of the groynes. It made the impact of constructive waves and sediment accumulation on the updrift side instantly recognizable, as the cross-profile line was visibly higher and steeper.
However, a limitation of this method was the potential for plotting error when drawing the slope angles manually. Furthermore, selecting the vertical scale was challenging; a scale that was too small would have hidden the differences, whilst too much vertical exaggeration could have distorted the actual shape of the beach.
Overall, the presentation method was highly effective because it directly addressed our hypothesis by visually proving the presence of longshore drift, though pairing it with a digital GIS overlay would have enhanced precision.
PastPaper.markingScheme
Level 2 (3–4 marks): Some assessment of the effectiveness of the presentation method(s), but may be one-sided or lack depth. Reference to the student's own enquiry is clear but may lack specific data or contextual details.
Level 1 (1–2 marks): Descriptive points about how the data was presented, with little or no assessment of its effectiveness. Reference to their own enquiry is weak, generic, or absent.
Indicative content:
- Assessment should cover the strengths (e.g., visual clarity, ease of identifying trends, patterns, or anomalies) and limitations (e.g., lack of spatial context, difficulty in plotting, potential for scaling errors, oversimplification) of the chosen presentation method(s).
- Common methods to assess include bar charts, scatter graphs, pie charts, desire lines, flow lines, proportional symbols, or cross-profiles.
State the title of your enquiry: ____________________________________________________________________
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PastPaper.workedSolution
**Enquiry Title:** *An investigation into downstream changes in the channel characteristics of the River Cardron.*
To a moderate extent, the accuracy of our data collection methods affected the validity of our conclusions. Our main conclusion was that the River Cardron generally fits the Bradshaw Model, as width, depth, and discharge increased downstream, while bedload size decreased.
However, several inaccuracies in our data collection methods introduced limitations:
1. **Velocity Measurement:** We used the float method (using a citrus fruit) rather than an impeller flowmeter. Surface tension, wind interference, and snagging on debris meant that the velocity was often overestimated or highly variable. This reduced the precision of our discharge calculations.
2. **Bedload Sampling:** We used a systematic sampling method, picking up the nearest pebble to our big toe at 10cm intervals across the transect. This introduced subjective bias, as we naturally tended to select larger, more visible rocks, artificially inflating the average bedload size at upper-course sites.
Despite these inaccuracies, the *validity* of our final conclusion was not entirely undermined. Because the downstream changes were so pronounced—for instance, average bedload size dropped from 18cm at Site 1 to 3cm at Site 4—the random and systematic errors in our pebble selection were not large enough to reverse the overall geographical trend. Thus, while our absolute quantitative values were somewhat inaccurate, our qualitative conclusion remains highly valid.
PastPaper.markingScheme
- Demonstrates a detailed and coherent understanding of the chosen fieldwork enquiry.
- Evaluates both the accuracy of specific methods and their direct impact on the validity of the conclusion(s).
- Makes a clear, reasoned judgment on 'the extent to which...' supported by specific evidence from their own fieldwork experience.
- Well-structured and uses appropriate geographical terminology fluently.
**Level 2 (4-6 marks) - Clear and Explanatory:**
- Demonstrates a clear understanding of the fieldwork methods used.
- Describes inaccuracies or errors and attempts to link them to the conclusions, but the evaluation may be unbalanced or lacks depth in linking specific errors to the overall conclusion.
- A tentative or basic judgment is made.
- Some geographical terminology used.
**Level 1 (1-3 marks) - Basic and Descriptive:**
- Demonstrates basic, generic knowledge of fieldwork methods.
- Identifies simple problems with data collection (e.g., 'it rained', 'we didn't have enough time', 'we made mistakes') without clear links to the validity of conclusions.
- Lacks evaluation or reasoned judgment.
- Minimal or no geographical terminology.
**Guidance for Examiners:**
- Accept any appropriate physical or human geography enquiry.
- Candidates must focus on BOTH 'accuracy of data collection' AND 'validity of conclusions' to reach Level 3.
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