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What broader principle in disaster risk reduction do tsunami early-warning systems illustrate?

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1. What broader principle in disaster risk reduction do tsunami early-warning systems illustrate?

Since the underlying hazard often can’t be prevented, investment increasingly shifts toward reducing the time between detection and public warning, since that gap is where lives are saved or lost

Tsunami early-warning systems can completely prevent tsunamis from occurring

Reducing detection-to-warning time has no effect on how many lives are saved

Disaster risk reduction focuses exclusively on preventing hazards, never on warning systems

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What broader principle in disaster risk reduction do tsunami early-warning systems illustrate?

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