Which of the following are reasons why the Pacific coast of Japan is more vulnerable to tsunamis than the Pacific coast of Canada? (1) Japan is closer to active subduction zones where megathrust earthquakes occur. (2) Japan has a higher proportion of low-lying, indented ria coasts that amplify tsunami waves. (3) Japan lacks a tsunami warning system.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
Statement (1) is correct because Japan is located along the Pacific Ring of Fire with highly active subduction zones (e.g., Japan Trench), whereas western Canada has different tectonic settings with lower frequency of megathrust events. Statement (2) is correct because ria coasts (indented bays) funnel tsunami waves, increasing their height and destructiveness. Statement (3) is incorrect because Japan has one of the world's most advanced tsunami warning systems.
Marking scheme
Award 1 mark for the correct answer A. Reject other options.
Which of the following is/are example(s) of a positive feedback loop associated with global warming? (1) Melting of permafrost -> Release of methane -> Enhanced greenhouse effect -> Further temperature rise. (2) Increase in global temperature -> Increase in evaporation -> More low-level clouds -> Increased reflection of solar radiation -> Decrease in temperature. (3) Shrinking of Arctic sea ice -> Decreased planetary albedo -> Increased absorption of solar radiation -> Further ice melt.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
Statements (1) and (3) are positive feedback loops because the initial change (warming) triggers a sequence of events that amplifies the initial change, leading to more warming. Statement (2) is a negative feedback loop because the increase in low-level clouds reflects more solar radiation, which cools the Earth, counteracting the initial warming.
Marking scheme
Award 1 mark for the correct answer B. Reject other options.
Compared to traditional flood irrigation, which of the following are the environmental benefits of adopting drip irrigation in arid farming regions? (1) Minimising soil salinisation. (2) Reducing water loss through evaporation. (3) Raising the groundwater table.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
Drip irrigation delivers water directly to the plant roots, which significantly reduces evaporation loss (Statement 2) and prevents waterlogging. This avoids raising the groundwater table, which would otherwise bring dissolved salts to the surface and cause soil salinisation (Statement 1). Raising the groundwater table (Statement 3) is not a benefit and indeed causes salinisation in arid regions.
Marking scheme
Award 1 mark for the correct answer A. Reject other options.
Which of the following descriptions about wave refraction at a headland and bay coast are correct? (1) Wave energy is concentrated at the headland, leading to active erosion. (2) Wave energy is dispersed in the adjacent bays, promoting deposition. (3) Wave crests bend and become parallel to the offshore submarine contours.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
As waves approach an irregular coastline, they touch the shallow sea floor around headlands first, causing them to slow down. This causes wave crests to bend and tend to parallel the submarine contours (Statement 3). Consequently, wave energy is concentrated on the headlands (Statement 1) and dispersed in the bays (Statement 2).
Marking scheme
Award 1 mark for the correct answer D. Reject other options.
Why is the soil in tropical rainforests generally nutrient-poor despite the extremely high plant biomass? (1) Rapid decomposition of organic litter under hot and wet conditions. (2) Intense leaching of soil nutrients by heavy, frequent rainfall. (3) Rapid absorption of nutrients by the dense root networks of vegetation.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
In a tropical rainforest, the high temperature and humidity lead to rapid decomposition of litter (Statement 1). The released nutrients are quickly absorbed by the extensive root systems of the plants (Statement 3), leaving very little in the soil. Any remaining nutrients are easily washed away deep into the soil profile by heavy rain through leaching (Statement 2). Thus, the soil nutrient store remains very small.
Marking scheme
Award 1 mark for the correct answer D. Reject other options.
Which of the following factors best explains the spatial shift of major iron and steel plants in China from inland cities (such as Anshan) to coastal locations (such as Shanghai) since the late 20th century?
- A.Depletion of local energy resources in inland provinces
- B.Increased reliance on imported high-grade iron ore and proximity to large coastal markets
- C.Cheaper land rent and abundant labor supply in coastal megacities
- D.Lower transport costs of shipping finished steel products to inland provinces
Worked solution
Modern coastal steel plants (like Baosteel in Shanghai) rely heavily on high-grade iron ore imported from countries like Australia and Brazil via cheap ocean transport. They are also located close to the major domestic manufacturing and construction markets concentrated in the coastal economic zones.
Marking scheme
Award 1 mark for the correct answer B. Reject other options.
In the urban renewal process of Hong Kong, which of the following approaches is most effective in preserving existing social networks and the local community character of old districts?
- A.Redevelopment
- B.Rehabilitation
- C.Clearance and resettlement
- D.Land reclamation
Worked solution
Rehabilitation involves repairing and upgrading existing buildings rather than demolishing them. This allows residents and shopkeepers to remain in their original neighborhood, thereby preserving long-established social networks and community character, unlike redevelopment which displaces residents.
Marking scheme
Award 1 mark for the correct answer B. Reject other options.
In the rock cycle, which of the following pairs correctly matches a parent rock with its metamorphic equivalent under high temperature and pressure?
- A.Granite -> Gneiss
- B.Limestone -> Slate
- C.Sandstone -> Marble
- D.Shale -> Quartzite
Worked solution
Granite (igneous) undergoes regional metamorphism to become gneiss. Limestone becomes marble, sandstone becomes quartzite, and shale becomes slate.
Marking scheme
Award 1 mark for the correct answer A. Reject other options.
Which of the following atmospheric conditions are characteristic of the Subtropical High Pressure Belt? (1) Sinking air mass leading to dry and stable weather. (2) Strong convection currents producing heavy afternoon thundershowers. (3) Prevailing wind divergence at the surface.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
The Subtropical High Pressure Belt is characterized by descending (sinking) air from the Hadley cell, which inhibits cloud formation and results in dry, stable climates (Statement 1). Convective showers are characteristic of the Equatorial Low, not the Subtropical High. Since it is a high-pressure zone, air diverges at the surface towards lower pressure zones (Statement 3).
Marking scheme
Award 1 mark for the correct answer B. Reject other options.
A geography student wants to conduct a questionnaire survey on the shopping habits of visitors in a shopping mall. She stands at the main entrance and interviews every 10th visitor who enters the mall. What sampling method is the student using?
- A.Random sampling
- B.Systematic sampling
- C.Stratified sampling
- D.Convenience sampling
Worked solution
Selecting interviewees at a regular, predetermined interval (in this case, every 10th person) is the definition of systematic sampling.
Marking scheme
Award 1 mark for the correct answer B. Reject other options.
Which of the following coastal conditions is most favorable for the formation of a spit?
- A.Strong longshore drift and a sudden change in the direction of the coastline.
- B.High wave energy and a steep offshore gradient.
- C.Intense hydraulic action and a lack of sediment supply.
- D.Dominance of destructive waves along a straight rocky shoreline.
Worked solution
A spit is a depositional landform. It forms when longshore drift carries sediment along the coast, and when there is a sudden change in the coastline's direction (e.g., at an estuary or bay), the sediment continues to be deposited in the original direction, forming a spit. Destructive waves and high wave energy lead to erosion rather than deposition.
Marking scheme
Award 1 mark for the correct answer A. No marks for other options.
Which of the following factors explain why a deep-focus earthquake generally causes less ground shaking and destruction at the epicentre than a shallow-focus earthquake of the same magnitude? (1) Seismic waves lose energy as they travel a longer distance to the surface. (2) Deep-focus earthquakes only produce primary (P) waves. (3) The surface waves produced by deep-focus earthquakes are much weaker when they reach the surface.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
Statement (1) is correct because seismic waves attenuate (lose energy) as they travel through a greater thickness of rock from a deep focus to the surface. Statement (2) is incorrect because deep-focus earthquakes produce both body waves (P and S waves) and surface waves. Statement (3) is correct because surface waves (which cause the most destruction) are strongest near the source and weaken significantly or are poorly developed at the surface when the focus is deep.
Marking scheme
Award 1 mark for the correct answer B. No marks for other options.
In the study of climate change, which of the following is an example of a positive feedback loop?
- A.Rising temperatures -> Increased evaporation -> More low-level clouds -> Increased reflection of solar radiation -> Decreased temperatures.
- B.Rising temperatures -> Melting of permafrost -> Release of methane gas -> Enhanced greenhouse effect -> Rising temperatures.
- C.Increased atmospheric carbon dioxide -> Enhanced plant photosynthesis -> Increased absorption of carbon dioxide -> Decreased atmospheric carbon dioxide.
- D.Rising temperatures -> Increased forest growth in high latitudes -> Carbon sequestration by trees -> Decreased greenhouse effect -> Decreased temperatures.
Worked solution
A positive feedback loop is a process where the initial change triggers a sequence of events that amplifies or reinforces the initial change. In option B, the initial warming leads to permafrost melting, releasing methane (a greenhouse gas), which causes further warming. Options A, C, and D are negative feedback loops because the final outcome counteracts the initial change.
Marking scheme
Award 1 mark for the correct answer B. No marks for other options.
Which of the following factors explain why the iron and steel industry in China has increasingly relocated from inland regions (e.g. Anshan) to coastal regions (e.g. Zhanjiang) in recent decades? (1) Depletion of local high-grade iron ore and coal reserves in northern inland regions. (2) Increasing reliance on imported high-grade iron ore from Australia and Brazil. (3) Shift of the major steel market towards the prosperous southern and coastal economic zones.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
All three factors are correct. Inland iron and steel bases face resource depletion. Coastal locations offer excellent port facilities to import high-grade raw materials directly by bulk carriers, reducing transport costs. Additionally, coastal and southern regions have become major markets due to rapid urbanisation, infrastructure development, car manufacturing, and shipbuilding.
Marking scheme
Award 1 mark for the correct answer D. No marks for other options.
Which of the following descriptions about the nutrient cycle in a tropical rainforest ecosystem is correct?
- A.The soil nutrient pool is the largest among the three pools due to rapid rock weathering.
- B.The litter pool is exceptionally large because of the continuous and heavy leaf fall throughout the year.
- C.Nutrients are rapidly absorbed by the dense, shallow root systems of trees, keeping the biomass pool the largest.
- D.Heavy rainfall enhances leaching, which increases the concentration of soluble nutrients in the topsoil.
Worked solution
In a tropical rainforest, the biomass pool is the largest because vegetation is abundant and grows rapidly. The soil pool is very small because heavy rainfall causes intense leaching, washing away nutrients, and roots absorb nutrients almost immediately. The litter pool is also small because the hot and wet climate promotes rapid decomposition by decomposers.
Marking scheme
Award 1 mark for the correct answer C. No marks for other options.
In a sustainable city, which of the following transport planning strategies is most effective in achieving BOTH carbon reduction and social equity?
- A.Implementing high electronic road pricing in all residential districts to discourage private car ownership.
- B.Developing a transit-oriented development model centered on subsidized, high-accessibility public transit.
- C.Providing generous tax incentives for middle-income households to replace diesel cars with electric vehicles.
- D.Restricting pedestrian zones in busy commercial areas to speed up the flow of private vehicular traffic.
Worked solution
A Transit-Oriented Development (TOD) model encourages the use of public transport, reducing carbon emissions. Subsidizing public transit and ensuring high accessibility promote social equity by making affordable transport available to lower-income groups. High road pricing without alternatives (A) or tax incentives for private electric vehicles (C) do not promote social equity.
Marking scheme
Award 1 mark for the correct answer B. No marks for other options.
Compared to traditional flood irrigation, which of the following are the advantages of using drip irrigation in arid agricultural regions? (1) It minimizes water loss through evaporation and deep percolation. (2) It reduces the risk of soil salinisation. (3) It requires a much lower initial capital investment.
- A.(1) and (2) only
- B.(1) and (3) only
- C.(2) and (3) only
- D.(1), (2) and (3)
Worked solution
Statements (1) and (2) are correct because drip irrigation delivers water directly to the plant roots in controlled amounts, minimizing evaporation and preventing waterlogging that leads to salinisation. Statement (3) is incorrect because drip irrigation systems require a high initial investment for pipes, emitters, pumps, and filtration systems, which is often a major barrier for poor farmers.
Marking scheme
Award 1 mark for the correct answer A. No marks for other options.
A group of geography students wants to study the microclimate of a high-density urban residential area. Which of the following sampling methods and data collection strategies is the most appropriate?
- A.Measuring air temperature at a single fixed station for 24 hours to represent the spatial variation of the entire district.
- B.Selecting multiple measuring points at regular intervals along a transect from an urban park to a concrete commercial core, using systematic sampling.
- C.Distributing questionnaires to 100 local residents to collect subjective perceptions of daily wind speed as primary scientific data.
- D.Using opportunistic sampling to measure wind speed only in open plazas during rainy days to study the urban heat island effect.
Worked solution
To study microclimate spatial variation (such as the urban heat island effect), setting up a transect across different land use types (e.g., from green space to concrete core) using systematic sampling is the standard scientific geographical method. A single station (A) cannot show spatial variation. Questionnaire data (C) is subjective and not suitable as primary climatic measurements. Rainy days (D) are unsuitable for studying the heat island effect, and opportunistic sampling is highly biased.
Marking scheme
Award 1 mark for the correct answer B. No marks for other options.
In the rock cycle, which of the following geological processes directly transforms sedimentary rocks into metamorphic rocks?
- A.High temperature and pressure causing mineral recrystallisation without complete melting.
- B.Intense weathering and erosion followed by deep compaction and cementation.
- C.Complete melting into magma followed by slow cooling and solidifying underground.
- D.Subduction of plates carrying rocks into the mantle to be completely recycled.
Worked solution
Metamorphic rocks are formed when pre-existing rocks (sedimentary or igneous) are subjected to high temperature and pressure, causing physical or chemical changes (recrystallisation) in the solid state (without melting). Complete melting (C) would form magma which cools to become igneous rocks. Compaction and cementation (B) form sedimentary rocks.
Marking scheme
Award 1 mark for the correct answer A. No marks for other options.
During the winter monsoon in East Asia, which of the following atmospheric conditions typically develops over the Eurasian continent and brings cold, dry weather to Hong Kong?
- A.A strong low-pressure centre over Siberia, driving warm maritime air masses southward.
- B.A powerful high-pressure system (Siberian High), driving cold, dry continental airstreams southward.
- C.A tropical depression in the South China Sea, drawing humid southeasterly winds into southern China.
- D.The development of the Subtropical High over the Pacific Ocean, causing stagnant, hot air over the region.
Worked solution
In winter, the Eurasian continent cools down rapidly, forming a huge thermal high-pressure system known as the Siberian High. The air blows outwards from this high-pressure centre, creating cold and dry northwesterly to northeasterly continental monsoonal winds that reach South China and Hong Kong.
Marking scheme
Award 1 mark for the correct answer B. No marks for other options.