The level of air pollution is higher at a busy traffic intersection why? (a) Accumulation of persons at the junction
(b) Due to traffic lights
(c) Accumulation of harmful gases at the junction
(d) None of these
help please....
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(c) Accumulation of harmful gases at the junction .
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The correct option will be option c.
This is because at the junction many kinds of vehicles stop.These vehicles releases many gases and suspended particulate matter which contributes to air pollution.
The gases could be carbon mono oxide, nitrogen oxides , sulphur dioxide etc.
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