Question

Which of the following is the largest contributor to air pollution?

Options

• Burning of farm waste

• Automobiles

• Household Activities

• All of these.

Answer 1

Automobiles

Explanation:

Vehicle (automobile) exhaust is the single largest contributor to air pollution, it releases CO, unburnt hydrocarbons, NOx, and particulate matter, and in many urban settings, vehicular emissions account for the biggest share of pollutants (the sources note vehicles are responsible for the largest portion of urban air pollution, in some cases cited as over 75–80%).