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Question

We do not need bridges or tunnels, we can always use trolleys to cross the obstacles. Do you agree with this statement? Justify your answer.

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Solution

No, bridges and tunnels are necessary because trolleys cannot carry heavy loads, The advantages of tunnels and bridges are that they:
  • connect places separated by obstacles
  • help save the time for travel
  • help in reduction of traffic jams
  • avoid pollution due to traffic jams.

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