std:4 Evs Q–1. why should a bridge be built over river?
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A bridge should be built over a river so that people can cross the river without having to swim.
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3
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Bridges are structures built over railroad tracks, roads, rivers or some other obstacle. They allow people or vehicles to cross from one side to another. Bridges must be built strong enough to safely support their own weight as well as the weight of the people and vehicles that pass over it.
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