Topics of this game:
- Which of the following is not a primary air pollutant?
- A device used to clean exhaust gases before they exit a automobile's tailpipe is called
- The majority of sulfur dioxide produced by industry comes from
- Which of the following substances is not involved in the chemical reaction that produces smog?
- Which of the following respiratory diseases is considered a long-term effect of air pollution on human health?
- Which of the following substances is a colorless, tasteless, and odorless radioactive gas?
- Which is not an effective solution to inefficient lighting?
