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Unit – IV Environmental Pollution [18 Marks]
4.1 Definition of pollution, types- Natural & Artificial (Man- made)
4.2 Soil / Land Pollution – Need of preservation of soil resource, Causes and effects on environment and lives, preventive measures, Soil conservation
4.3 Water Pollution – sources of water pollution, effects on environment and lives, preventive measures, BIS water quality standards for domestic potable water, water conservation
4.4 Air pollution – Causes, effects, prevention, CPCB norms of ambient air quality in residential area
4.5 Noise pollution – Sources, effects, prevention, noise levels at various zones of the city
4.6 Pollution Control Boards at Central and State Government level: Norms, Roles and Responsibilities
SET 7
#1. Which of the following is a common method used for water treatment?
#2. What is the main objective of the BIS (Bureau of Indian Standards) water quality standards for domestic potable water?
#3. According to BIS water quality standards the acceptable limit of Total Dissolved Solids (TDS) in potable water is:
#4. Which of the following is a preventive measure to reduce water pollution?
#5. What is the acceptable pH range for drinking water as per BIS standards?
#6. The process of removing pollutants from wastewater before releasing it back into the environment is called:
#7. Which of the following contributes significantly to groundwater pollution?
#8. Which of these is NOT a water conservation technique?
#9. What is the effect of plastic waste on water bodies?
#10. The presence of which of the following is an indicator of fecal contamination in water?
#11. The process of desalination is used to:
#12. What is one of the key objectives of the National Water Quality Monitoring Program (NWQMP) in India?
#13. The process of conserving water by reducing its wastage in domestic use is known as:
#14. Which of the following is the major source of air pollution in urban areas?
#15. What is the primary component of vehicular emissions that contributes to air pollution?
#16. Which of the following is a natural source of air pollution?
#17. Which of the following is the most common effect of air pollution on human health?
#18. The term ‘smog’ is a combination of which two components?
#19. Which of the following is NOT a preventive measure to reduce air pollution?
#20. Which of the following is a common outdoor air pollutant that affects respiratory health?
#21. What is the primary source of sulfur dioxide (SO2) in the atmosphere?
#22. The major source of particulate matter (PM) in the air is:
#23. Which of the following is a long-term effect of exposure to air pollution?
#24. What is the purpose of the Central Pollution Control Board (CPCB) in India?
#25. What is the permissible limit of Particulate Matter (PM2.5) in residential areas according to CPCB standards?
#26. According to the CPCB norms what is the acceptable limit for Nitrogen Dioxide (NO2) in residential areas for a 24-hour period?
#27. What does the term “ambient air quality” refer to?
#28. What is the acceptable limit of Sulfur Dioxide (SO2) in residential areas according to CPCB norms for a 24-hour period?
#29. Which of the following is an effective method to prevent air pollution in cities?
#30. What is the permissible level of Carbon Monoxide (CO) in ambient air for residential areas as per CPCB standards?
#31. How can the use of cleaner fuels help in reducing air pollution?
#32. Which of the following can help in reducing air pollution from vehicles?
#33. Which of the following practices can help reduce indoor air pollution?
#34. Which of the following is a major source of noise pollution in urban areas?
#35. What is the primary source of noise pollution in industrial zones?
#36. Which of the following is a common effect of prolonged exposure to high noise levels?
#37. Noise pollution primarily affects which of the following?
#38. Which of the following is a potential long-term health effect of noise pollution?
#39. Which of the following is considered a noise level above 85 decibels (dB) in an industrial setting?
#40. According to WHO what is the maximum permissible noise level for residential areas during the day?
#41. The Central Pollution Control Board (CPCB) has set noise level standards for:
#42. Noise pollution can cause stress and lead to:
#43. Which of the following activities can contribute to noise pollution during the night?
#44. What is the main cause of noise pollution in urban areas during festivals?
#45. Which of the following measures can help in reducing noise pollution?
#46. According to CPCB guidelines the permissible noise level for commercial areas during the daytime is:
#47. Which of the following is a noise level typical of normal conversation?
#48. What is one of the primary methods to prevent noise pollution in residential areas?
#49. What is the permissible noise level in the industrial zones according to CPCB norms during the day?
#50. Which of the following zones typically has the highest permissible noise levels?
#51. What is the permissible noise level in silent zones (such as near hospitals schools) during the daytime according to CPCB standards?
#52. Which of the following is NOT a preventive measure to reduce noise pollution?
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