Question

the formation of photochemical smog is a result of a series of reactions between chemicals in the atmosphere and light. volatile organic compounds (vocs) interact with nitric oxide to form ozone and other secondary pollutants. what is the most likely source of vocs?
a evaporation from gasoline
b emissions from volcanic activity
c sublimation from decaying animal waste
d evaporation from volatile compounds in sidewalks

Explanation:

Volatile Organic Compounds (VOCs) are carbon-based chemicals that easily vaporize. Gasoline is a common source of anthropogenic VOCs, as its components evaporate readily, especially from vehicle fuel systems and storage. Volcanic emissions primarily release inorganic gases like sulfur dioxide, decaying animal waste does not release significant VOCs via sublimation, and sidewalks do not typically have volatile compounds that evaporate in large enough quantities to be a major VOC source.

Answer:

A. evaporation from gasoline