Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

تمرين 1

What is air pollution ? Distinguish between primary pollutants and secondary pollutants , and give an example of each. Distinguish between industrial smog and photochemical smog , and describe how each is formed. List five natural factors that help to reduce outdoor air pollution and six natural factors that help to worsen it. What is a temperature inversion and how can it affect air pollution levels?