Which of the following pollutants is not present in the vehicular exhaust emissions?
The correct option is C Ammonia
Vehicular emissions are contributing to air quality problems, smog etc.
emissions of many air pollutants have shown variety of negative effect
on public health. Emission of principle pollutants like hydrocarbon, CO.
$$NO_x$$, $$SO_x$$, particulate matter and volatile organic
compounds are affecting natural environment and contributing to asthma,
bronchitis and various diseases etc. Ammonia is not present in vehicular