Which structure is used to protect London from flooding?

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Multiple Choice

Which structure is used to protect London from flooding?

Protecting a city from tidal flooding relies on a movable barrier that can be closed when water levels threaten to rise. The Thames Barrier across the River Thames is designed for this purpose. When forecasts show high tides and storm surges, the gates are lowered into position to form a continuous barrier that stops water from advancing upstream into London. When conditions calm, the gates can be opened to let ships pass. This system has protected central London since the early 1980s and remains one of the world’s largest movable flood barriers. The Severn Bridge is simply a road bridge over another river, London Bridge is a historic crossing in central London, and a Great Thames Dam isn’t a structure used for protection in this context. So the barrier across the Thames is the structure that protects London from flooding.

Protecting a city from tidal flooding relies on a movable barrier that can be closed when water levels threaten to rise. The Thames Barrier across the River Thames is designed for this purpose. When forecasts show high tides and storm surges, the gates are lowered into position to form a continuous barrier that stops water from advancing upstream into London. When conditions calm, the gates can be opened to let ships pass. This system has protected central London since the early 1980s and remains one of the world’s largest movable flood barriers. The Severn Bridge is simply a road bridge over another river, London Bridge is a historic crossing in central London, and a Great Thames Dam isn’t a structure used for protection in this context. So the barrier across the Thames is the structure that protects London from flooding.

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