Meter that can easily check the pollution level of various automobiles.Petrol is a Hydrocarbon(HC) madeup of Hydrogen & Carbon.These two elements mix readily with Oxygen.When Hydrogen unites with Oxygen,water(H2O)is formed.When carbon unites with Oxygen,Carbon Monoxide(CO) & Carbon Dioxide(CO2) are formed.
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Kakkanad, Kochi, Kerala