Air Pollution MCQs

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1. What is air pollution?





2. Which organization provides international guidelines on air quality?





3. Which of the following is a primary air pollutant?





4. Which gas is mainly produced by incomplete combustion of fuel?





5. The largest source of urban air pollution is:





6. Which pollutant is mainly responsible for acid rain?





7. Nitrogen oxides (NOₓ) are mainly released from:





8. Which gas is considered a greenhouse gas?





9. Which air pollutant is most harmful due to its ability to penetrate deep into the lungs?





10. PM2.5 refers to particulate matter with a diameter of:





11. Which pollutant is commonly associated with photochemical smog?





12. Smog is commonly formed by the reaction of sunlight with:





13. Indoor air pollution in developing countries is mainly caused by:





14. Which disease is commonly associated with long-term air pollution exposure?





15. Air pollution can worsen:





16. Which group is most vulnerable to air pollution?





17. Which pollutant reduces the oxygen-carrying capacity of blood?





18. Which environmental issue is mainly linked to increased greenhouse gases?





19. Which gas contributes most to ozone layer depletion?





20. The ozone layer protects Earth from:





21. Which activity helps reduce air pollution?





22. Which fuel burns more cleanly than coal?





23. Which is a common source of sulfur dioxide emissions?





24. Which air pollutant is odorless, colorless, and highly poisonous?





25. Which of the following is a secondary air pollutant?





26. Which environmental condition traps pollutants close to the ground?





27. Which occupation has a higher risk of exposure to air pollution?





28. Which pollutant is commonly released from cigarette smoke?





29. Passive smoking refers to:





30. Which indoor practice reduces air pollution?





31. Which disease is strongly associated with exposure to asbestos dust?





32. Long-term exposure to silica dust may cause:





33. Which pollutant is produced from burning fossil fuels and contributes to climate change?





34. Which of the following is a natural source of air pollution?





35. Which human activity significantly increases particulate matter in the air?





36. Which pollutant is commonly monitored in Air Quality Index (AQI)?





37. The Air Quality Index (AQI) is used to:





38. Which measure helps reduce vehicle-related air pollution?





39. Which pollutant is mainly responsible for respiratory irritation?





40. Air pollution is a major risk factor for:





41. Which gas contributes to the greenhouse effect and is released by livestock?





42. Which weather condition generally helps disperse air pollutants?





43. Which preventive measure can reduce exposure during high air pollution days?





44. Which source contributes significantly to indoor air pollution from tobacco?





45. Which type of pollution is caused by emissions from factories?





46. Which Sustainable Development Goal (SDG) is closely linked to reducing air pollution?





47. Which pollutant is a major component of vehicle exhaust?





48. Air pollution primarily enters the human body through the:





49. The best long-term strategy to reduce air pollution is:





50. The ultimate goal of air pollution control is to:





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