A) Suspended Particulate Matter (SPM)
B) oxides of sulphur
C) carbon dioxide and carbon mono-oxide
D) oxides of nitrogen
Correct Answer: C
Solution :
In all metropolitan cities of India, 800-1000 tones pollutants are being emitted in air daily. Of which 50% comes from automobile. In Delhi, during peak hours automobiles emit 700 kg of CO, 250 kg of hydrocarbons and 60 kg of NOx. On an average, 1000 litres of fuel of a car produces 350 kg CO, 0.6 kg \[S{{O}_{2}},\] 0.1 kg of lead and 1.5 kg of SPM. In response to harmful effect, carbon mono-oxide (CO) combines with haemoglobin of blood and impairs its oxygen carrying capacity. While excess \[C{{O}_{2}}\] attracts heating radiations of sun to the earth resulting in risen in temperature of earth (green-house effect) and considered as main greenhouse gas.
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