watch short video (5 minutes) and answer two questions (300 words)
Question Description
Photochemical smog is what is known as a secondary pollutant. A secondary pollutant is when something that is released into the atmosphere experiences a chemical reaction that then produces a pollutant. Watch the video below to learn how photochemical smog is produced and why it is such a problem for certain cities such as Los Angeles. After watching the video, answer the questions below in approximately 300 words.
1. How is photochemical smog different from the air pollution that caused the Great Smog in London?
2. What are the physical geographic conditions present in certain cities that make photochemical smog such a problem?
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