Secondary 4 Geography Practice Paper 2

Answer Key - TuitionGoWhere Practice Paper (AI) Version 2

Section A: Map, Graph & Data Skills

Question 1 (a) Landform: Sea stack [1] (b) Features: (Any two) [2]

• Vertical/steep sides of the rock pillar.
• Detached from the main cliff/headland.
• Base is surrounded by water/waves. (c) Formation: [4]
• Waves attack a headland, exploiting cracks/faults via hydraulic action and abrasion (1).
• A cave is formed, which eventually breaks through to form an arch (1).
• The roof of the arch becomes unstable due to weathering and erosion (1).
• The roof collapses, leaving an isolated pillar of rock known as a stack (1).

Question 2 (a) Pie Chart: [4]

• Calculations: Total = 50m. Europe (86.4°), N. America (57.6°), Asia (180°), Oceania (36°). (1)
• Accurate plotting of sectors (1).
• Correct labels for each region (1).
• Title included (e.g., "Visitor Origins for Country Z, 2023") (1). (b) Trend: [4]
• Asia is the dominant source of visitors (1), contributing half of all arrivals (25m out of 50m) (1).
• Oceania is the smallest source of visitors (1) at 5 million.

Section B: Physical Geography

Question 3 (a) Coral Reefs & Erosion: [4]

• Coral reefs act as physical barriers/breakwaters (1).
• They dissipate wave energy before it reaches the shoreline (1).
• This reduces the power of hydraulic action and abrasion on the coast (1).
• Consequently, the rate of sediment removal/erosion is lowered (1).

(b) Beach Formation & Slope: [6]

• Formation: Sediment is transported by longshore drift or rivers and deposited where wave energy decreases (e.g., in a bay) (2).
• Material & Slope: Large shingle/pebbles create a steeper slope (1) because they are poorly packed, allowing more water to percolate through and reducing the power of the backwash (1). Fine sand creates a gentler slope (1) as it packs tightly, increasing backwash power which carries sediment back down the beach (1).

Question 4 (a) Climate: [4]

• Type: Equatorial / Tropical Rainforest climate (1).
• Account: Located near the equator (1), where the sun's rays are most direct/concentrated (1), leading to high solar radiation and high temperatures year-round (1).

(b) Response vs Preparedness: [6]

• Agree: Earthquakes are unpredictable (1); response measures (e.g., Search and Rescue, emergency aid) save lives immediately after the event regardless of when it happens (2).
• Disagree: Preparedness (e.g., seismic building codes, drills) reduces vulnerability (1). If buildings don't collapse, fewer people are trapped, making response measures more effective (2).
• Conclusion: Both are necessary; preparedness minimizes the disaster, while response manages the aftermath (1).

Section C: Human Geography & Singapore

Question 5 (a) TALC & Decline: [4]

• In the stagnation stage, the destination reaches carrying capacity (1).
• Environmental degradation or social tension (overcrowding) occurs (1).
• Tourists seek new, "undiscovered" destinations (1).
• Visitor numbers drop, leading to the decline stage where facilities deteriorate (1).

(b) Singapore Trade-offs: [5]

• Economic: New precincts increase tourism revenue, create jobs in hospitality, and boost GDP (2).
• Environmental: Construction may lead to loss of coastal mangroves or disruption of local biodiversity (2).
• Synthesis: Use of "City in Nature" concepts (e.g., green roofs) to balance growth with ecology (1).

Question 6 Food Security & Technology: [6]

• Agree: Vertical farming and hydroponics allow land-scarce nations (like Singapore) to produce food locally, reducing reliance on imports (3).
• Disagree: High energy costs for LED lighting/climate control (1); does not address the root cause of food waste or unsustainable consumption patterns (2).
• Conclusion: Technology is a critical tool, but must be paired with policy changes and behavioral shifts for long-term security (1).