World at Risk

Worked examples (8)

• 1Distinguish a natural hazard from a disaster (3 marks)
• 2Classify the four plate margin types (4 marks)
• 3Conditions for tropical cyclone formation (3 marks)
• 4Apply the disaster risk equation (5 marks)
• 5Explain earthquakes at a destructive margin (4 marks)
• 6El Niño and shifting hazard distribution (6 marks)
• 7Interpret a logarithmic magnitude scale (5 marks)
• 8Explain a multiple-hazard hotspot (6 marks)

Model answers (9)

• ✓Model answer 1
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style

Worked examples (8)

• 1Describe the trend in reported hydro-meteorological hazards (3 marks)
• 2Describe the contrasting trends of two lines on a hazard graph (3 marks)
• 3Suggest why reported hazard frequency may be rising (3 marks)
• 4Explain why economic losses from hazards are rising (4 marks)
• 5Explain why death tolls are falling in many countries (4 marks)
• 6Compare the predictability of different hazard types (4 marks)
• 7Assess the effectiveness of warning systems in reducing hazard impact (6 marks)
• 8Describe and explain a graph of death toll against development level (6 marks)

Model answers (9)

• ✓Model answer 1
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style

Worked examples (8)

• 1Distinguish mitigation from adaptation (3 marks)
• 2Identify mitigation strategies (3 marks)
• 3Adaptation in a lower-income country (3 marks)
• 4Explain a hard-engineering adaptation (4 marks)
• 5Evaluate a global agreement (4 marks)
• 6Explain differing attitudes to action (4 marks)
• 7Evaluate managed retreat vs hard defences (6 marks)
• 8Evaluate mitigation vs adaptation as a strategy (6 marks)

Model answers (9)

• ✓Model answer 1
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style

Worked examples (8)

• 1Distinguish geophysical and hydro-meteorological hazards (2 marks)
• 2Describe the distribution of earthquakes from a world map (3 marks)
• 3Describe where tropical cyclones form (3 marks)
• 4Suggest why earthquakes cluster around the Pacific (4 marks)
• 5Explain the conditions needed for tropical cyclones (6 marks)
• 6Interpret a magnitude-versus-deaths scatter graph (4 marks)
• 7Explain why the Philippines is a disaster hotspot (6 marks)
• 8Explain the economic-versus-human cost contrast in mega-disasters (6 marks)

Model answers (9)

• ✓Model answer 1
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style

Worked examples (8)

• 1Glacial and interglacial periods (2 marks)
• 2Sources of evidence for past climate change (3 marks)
• 3Describe the trend in an ice-core CO₂ record (3 marks)
• 4Explain how ice cores provide evidence (4 marks)
• 5Explain how tree rings provide evidence (4 marks)
• 6Describe a change shown by two datasets (4 marks)
• 7Explain how Milankovitch cycles cause climate change (6 marks)
• 8Explain volcanic and solar causes of climate change (6 marks)

Model answers (9)

• ✓Model answer 1
• ✓Model answer 2
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style

Worked examples (8)

• 1Natural vs enhanced greenhouse effect (2 marks)
• 2Describe the CO2 trend since 1960 — the Keeling curve (3 marks)
• 3Greenhouse gases and their human sources (3 marks)
• 4Explain the enhanced greenhouse effect (4 marks)
• 5Explain the ice-albedo positive feedback (4 marks)
• 6Why sea level rises — thermal expansion vs melting ice (4 marks)
• 7Why IPCC projections are uncertain (6 marks)
• 8Why impacts fall unevenly on LICs and small islands (6 marks)

Model answers (9)

• ✓Model answer 1
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style
• ✓Model answer — Edexcel IAL Geography Unit 1 style