Which of the following road surfaces freezes first when wet?
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Highways.
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Roundabouts.
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Bridges and overpasses.
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Tunnels.
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Explanation
Bridges and overpasses freeze first when wet because their elevated position exposes them to cold air on both upper and lower surfaces, accelerating the cooling process. Unlike regular roads, they lack the insulating effect of ground beneath them, causing faster temperature drops. These factors create particularly hazardous conditions during winter weather, requiring extra caution when crossing.
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