NEET BIOLOGY

Detailed explanation-1: -Vehicle exhaust emissions consist of the remnants of atmospheric air, carbon dioxide (CO2), water vapor, and numerous compounds in either particulate or gaseous form, the majority of which result from the incomplete combustion of fuel.

Detailed explanation-2: -Burning gasoline and diesel fuel creates harmful byproducts like nitrogen dioxide, carbon monoxide, hydrocarbons, benzene, and formaldehyde. In addition, vehicles emit carbon dioxide, the most common human-caused greenhouse gas.

Detailed explanation-3: -A car emissions test checks the emissions of your vehicle to make sure that the greenhouse gases and pollutants released by your car fall within your state’s legal limits. Car emissions testing is often conducted by connecting your car to a testing system through your car’s onboard diagnostics port (OBD2 port).

Detailed explanation-4: -If gasoline engines burned their fuel as efficiently as possible, they would produce three by-products: water vapor (H2O), carbon dioxide (CO2) and nitrogen (N2).

Detailed explanation-5: -Carbon monoxide-This odorless, colorless gas is formed by the combustion of fossil fuels such as gasoline. Cars and trucks are the source of nearly two-thirds of this pollutant. When inhaled, CO blocks the transport of oxygen to the brain, heart, and other vital organs in the human body.