Most hydrocarbons in the urban areas arise from
A)burning coal.
B)processing and use of gasoline.
C)industrial emissions.
D)natural sources.

Question

Quizplus · Accepted Answer

Hydrocarbons in urban areas mainly originate from the processing and use of gasoline. Gasoline is a mixture of various hydrocarbons, including volatile organic compounds (VOCs) such as benzene, toluene, and xylene, which are released into the atmosphere during automobile operation. Other sources of hydrocarbons in urban areas, such as industrial emissions and burning coal, may also contribute to the pollution, but their overall impact is relatively small compared to gasoline emissions. Natural sources, such as vegetation, can also produce VOCs, but they are typically less significant in urban areas.

Most Hydrocarbons in the Urban Areas Arise from