Long TextExercise 78 of 81

When the city of Venice installed flood barriers across the mouths of its lagoon in 2020 - a project decades in the making and costing several billion euros - it accomplished something that was, by any reasonable measure, a triumph of engineering. The barriers, known collectively as MOSE, were designed to protect the…

• What underlying concern accompanied the successful activation of Venice's flood barriers?
• Why does the writer consider the lagoon essential to Venice's survival?