A) The widening of roads.
B) Having more traffic lights on roads.
C) Having less traffic lights on roads.
D) Reducing the number of vehicles on roads.
Correct Answer: D
Solution :
Air pollution is due to increase in the level of harmful gases in the atmosphere. These are increased by the combustion of fuels in the vehicles. Therefore, on reducing the vehicles on the roads, air pollution can be reduced.You need to login to perform this action.
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