This original video and accompanying quiz covers the basics behind photochemical smog, including how it's made, its components, examples of VOCs (volatile organic compounds), sources of VOCs, and how to reduce the prevalence of smog. The video is about two minutes long. The quiz has eight multiple choice questions and two free response/short answer questions.Included with purchase is a .mp4 video, a .mp4 video with subtitles, a .docx version of the video transcript, a .docx version of the quiz,