Question

Emission norms for petrol drive cars are designed as Euro I (June 1999) and Euro II (April 2000),
Euro III (2005) and Euro IV (2010) to reduces air pollution from the emission of these vehicles. These
parameters - the amount of hydrocarbons and nitrogen oxides, carbon monoxide and particulate matter
in the emission of these vehicles are taken into consideration while laying these norms.
Particulars
Old Norms
Euro I Norms
Euro II Norms
1. Hydrocarbons and 3 - 4.6 ppm
0.97 ppm
0.5 ppm
nitrogen oxides
2. Carbon monoxide
6.68 - 12.0
2.72 ppm
2.2 ppm
3. Particulate matter
No enforced
0.14 ppm
N/A
(a) In what way do the particulars given in the above table cause harm to the environment?
(6) Why do the values given in the table create a major problem for us?
(C) Write any two ways by which you can induce the above problem on your hand?
(d) Which one of the following is not an air pollutant?
(i) Carbon monoxide
(ii) Oxides of nitrogen
(iii) Carbon dioxide
(iv) Ozone layer​

Answer 1

Answer:

IV) ozone layer

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