Smoke from the vehicles mixes with air and causes breathing problems like asthma and other lung disorders.
A
True
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B
False
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Solution
The correct option is A True ∙ Vehicles that run on fuel emit smoke. As people moved to cities they have to travel long distances, because of this more people started using vehicles that run on fuel. ∙ Smoke from these vehicles mixes with air and causes breathing problems like asthma and other lung disorders.