How does the pollution occur due to vehicles? Give the names of vehicl

1.	How does the pollution occur due to vehicles? Give the names of vehicles causing least pollution.
Answer» 1. More than 50% of the air pollution is caused by vehicular traffic. 2. Particulate matter, unburnt hydrocarbons, CO, nitrogen oxides and carcinogenic hydrocarbons are present in the automobile exhausts. 3. Fossil fuels like petrol, diesel, natural gas, gasoline, etc. which are burnt to run the automobiles lead to the emission of CO₂ and other gases. 4. Therefore, vehicles are said to be the major contributors to air pollution. 5. The only vehicle which is nonpolluting is bicycle. The four-wheelers which are battery operated are also manufactured recently. These two types of vehicles are eco-friendly. The cars that run on C.N.G. are also said to be lesser polluting.

How does the pollution occur due to vehicles? Give the names of vehicles causing least pollution.

Answer»

1. More than 50% of the air pollution is caused by vehicular traffic.

2. Particulate matter, unburnt hydrocarbons, CO, nitrogen oxides and carcinogenic hydrocarbons are present in the automobile exhausts.

3. Fossil fuels like petrol, diesel, natural gas, gasoline, etc. which are burnt to run the automobiles lead to the emission of CO₂ and other gases.

4. Therefore, vehicles are said to be the major contributors to air pollution.

5. The only vehicle which is nonpolluting is bicycle. The four-wheelers which are battery operated are also manufactured recently.

These two types of vehicles are eco-friendly. The cars that run on C.N.G. are also said to be lesser polluting.