In my opinion for the first question, the given options are not correct, the main components of smog are ground-level ozone and particulate matter. The law which was enacted in the United States to protect the environment is the Clean Air Act of 1970.
• Smog refers to a form of air pollution, which results due to a different kinds of pollutants. The industrial smog comprises particulate matter, and sulfur oxide, while the photochemical smog comprises hydrocarbons and nitrogen oxides.
• The formation of smog takes place by the combination of various chemicals including sulfur dioxide, nitrogen oxides, volatile organic compounds, and carbon monoxide. However, the main constituents of smog are ground-level ozone and particulate matter.
• To control air pollution in the United States, the enactment of the Clean Air Act took place in 1970. This law resulted in the formation of comprehensive state and federal regulations to restrict emissions from both mobile and industrial sources.
To know more about smog, see the below given link:
https://brainly.com/question/13564917
https://brainly.com/question/19064400
