Neco 2025 Geography Question 35

Practice objective / multiple choice question 35 from the 2025 Neco Geography examination.

Neco 2025 Geography Objective / Multiple Choice Hard Difficulty
Question 35 NECO • 2025 • GEOGRAPHY • objective

Three environmental hazards affect a coastal region:\n\n- Flood: probability per year \(0.02\), potential damage \(150,000,000\) N\$; a levee costing \(5,000,000\) N\$ reduces the probability by 60\%.\n- Earthquake: probability per year \(0.005\), potential damage \(300,000,000\) N\$; seismic‑building codes costing \(8,000,000\) N\$ reduce the probability by 40\%.\n- Landslide: probability per year \(0.01\), potential damage \(120,000,000\) N\$; re‑forestation costing \(3,000,000\) N\$ reduces the probability by 50\%.\n\n(a) Which hazard has the highest expected annual loss before any mitigation?\n(b) Which mitigation measure gives the greatest reduction in expected loss per N\$ spent, and after implementing it, which hazard now has the highest expected annual loss and what is its value?

Answer Options

A. Before mitigation: Flood (expected loss = 3,000,000 N$). Most cost‑effective mitigation is the flood levee; after its implementation the highest expected loss remains Flood (2,400,000 N$).
B. Before mitigation: Landslide (expected loss = 1,200,000 N$). Most cost‑effective mitigation is the re‑forestation; after its implementation the highest expected loss is from Earthquake (1,800,000 N$).
C. Before mitigation: Earthquake (expected loss = 1,500,000 N$). Most cost‑effective mitigation is the seismic‑building codes; after its implementation the highest expected loss is from Flood (2,400,000 N$).
Correct Answer D. Before mitigation: Flood (expected loss = 3,000,000 N$). Most cost‑effective mitigation is the flood levee; after its implementation the highest expected loss is from Earthquake (1,500,000 N$).
Correct Answer
D
Correct Option:
Before mitigation: Flood (expected loss = 3,000,000 N$). Most cost‑effective mitigation is the flood levee; after its implementation the highest expected loss is from Earthquake (1,500,000 N$).

About This Question

This is Neco 2025 Geography Question 35. It is one of the objective questions from the 2025 Neco Geography examination.

Difficulty level: Hard .

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