8.3 Urban air pollution Quiz
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5 questions, one answer each
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1. Which is a secondary pollutant?
- A. Sulfur dioxide
- B. Tropospheric ozone
- C. Carbon monoxide
- D. Soot
2. Photochemical smog needs:
- A. Sunlight and primary pollutants
- B. Rain and ammonia
- C. Darkness and sulfur dioxide
- D. Only carbon dioxide
3. Which factor traps pollution near the ground?
- A. A strong wind
- B. A temperature inversion
- C. A heavy rainstorm
- D. A flat open plain
4. A direct biological impact of tropospheric ozone is:
- A. Lost working days
- B. Lost economic output
- C. Damage to plant leaf tissue
- D. Higher healthcare costs
5. Which strategy reduces SO2 at the source?
- A. Planting trees
- B. Cap-and-trade limiting emissions
- C. Liming a lake
- D. Issuing air quality alerts