What could help to overcome obstacles like heavy traffic and railway crossings?
A
Trolley
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B
Overbridge
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C
Bamboo bridge
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D
Rope bridge
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Solution
The correct option is B Overbridge Overbridges are built to overcome obstacles like heavy traffic and railway crossings. Overbridges are cement bridges that are build over a road or railway crossing to allow the traffic pass over the obstacle. Rope bridges or bamboo bridges are not so strong to carry heavy traffic over them and trolleys are used to overcome valleys.