geography MCQ #10502

A coastal mega-city of 10 million people faces a projected 1-metre sea level rise by 2100. Planners must choose between adaptation and managed relocation. Which economic geography factor most decisively tips the analysis toward relocation rather than adaptation?

geography MCQ #10502

  1. Question 1

    Q1. A coastal mega-city of 10 million people faces a projected 1-metre sea level rise by 2100. Planners must choose between adaptation and managed relocation. Which economic geography factor most decisively tips the analysis toward relocation rather than adaptation?

    • A) The city sits on a river delta with compacting soils, making Dutch-style dyke systems technically feasible but expensive
    • B) The city has a large informal settlement population that can be rehoused in suburban zones within 50 km
    • C) The city generates less than 3 percent of national GDP and its economic functions can be redistributed to inland centres at lower long-run cost
    • D) The city faces annual storm surge risk that already exceeds current sea wall design specifications

    Answer: The city generates less than 3 percent of national GDP and its economic functions can be redistributed to inland centres at lower long-run cost

    Explanation: If a city generates less than 3% of national GDP and its economic functions can be redistributed to inland centres at lower long-run cost, managed relocation becomes economically more rational than expensive flood-defence adaptation.