In 1958 trash collection programs were established, and backyard incinerators were banned in the hope of reducing smog. However,
it was estimated that massive amounts of gasoline were evaporating from storage tanks, fuel pump nozzles, and delivery trucks. This was also considered a serious contributor to smog, and over the next 20 years, several new rules and several new devices were put in place to alleviate it. There was still a great deal of smog, now identified as photochemical smog, despite the changes. The major remaining problem was _________.
The major remaining problem was the large distances driven daily by solitary commuters
Explanation:
Photochemical smog occurs when nitrogen oxides and volatile organic compounds mix together in the presence of sunlight which acts as a catalyst and form ozone at lower levels.
Even though measures such as ban of incinerators and regulation of evaporation of gasoline were instated photochemical smog was still present because people drive for a long time to get to work.
As far as photochemical smog is concerned it the combustion of other fossil fuels, such as gasoline by motor vehicles and industry is seen as its main contributor. Combustion releases primary pollutants: volatile organic compounds and nitrogen oxides. These pollutants are the main cause of photochemical combustion.
The student used correlation not causation. There is a high correlation with gray haired residents and Florida. But the cause of graying hair is not living in Florida. It might be something totally different. It might be a coincidence that it so happens to be in Florida. The student needs more evidence to make such a leap in logic.
